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Regular vaginal discharge is a sign of a healthy female reproductive system. Normal vaginal discharge contains a mixture of cervical mucus, vaginal fluid, dead cells, and bacteria.

Females may experience heavy vaginal discharge from arousal or during ovulation. However, excessive vaginal discharge that smells bad or looks unusual can indicate an underlying condition.

This articles discusses why someone may have heavy vaginal discharge and what they can do about it.

a woman lying in bed and wondering why she has so much discharge Share on Pinterest
Arousal, ovulation, and hormonal imbalances can each cause heavy discharge.

Sexual arousal triggers several physical responses in the body. Arousal increases blood flow in the genitals. As a result, the blood vessels enlarge, which pushes fluid to the surface of the vaginal walls.

Arousal fluid is clear and watery with a slippery texture. This fluid helps lubricate the vagina during sex.

Other signs of female arousal include:

  • increased heart rate and breathing
  • flushing of the face, neck, and chest
  • swelling of the breasts
  • erect nipples

Cervical fluid is a gel-like liquid that contains proteins, carbohydrates, and amino acids. The texture and amount of cervical fluid both change throughout a female's menstrual cycle.

For example, after menstruation, cervical fluid has a thick, mucus-like texture. It can be cloudy, white, or yellow.

Estrogen levels increase closer to ovulation. This causes the cervical fluid to become clear and slippery, similar to that of raw egg whites.

Cervical fluid discharge increases during the days leading up to ovulation and decreases after ovulation. Females may have no discharge for a few days after their period.

Hormonal imbalances related to stress, diet, or underlying medical conditions can cause heavier vaginal discharge.

Polycystic ovary syndrome (PCOS), for example, refers to a set of symptoms that occur as a result of hormonal imbalances. According to the Centers for Disease Control and Prevention (CDC), PCOS affects up to 5 million females in the United States.

Those with PCOS have higher levels of male hormones called androgens. Increased androgen levels can:

  • change the amount or texture of cervical fluid
  • cause irregular periods
  • prevent ovulation

Not everyone with PCOS will have increased vaginal discharge. Paying attention to other PCOS symptoms may help someone identify and seek treatment for the condition faster.

Some other symptoms of PCOS to look out for include:

  • fewer than eight periods in 1 year, or periods that occur every roughly 21 days
  • excess facial and body hair
  • thinning hair or hair loss
  • acne on the face and body
  • weight gain
  • darkening of the skin on the neck, groin, or breasts
  • skin tags on the armpits or neck

Hormonal birth control, such as birth control pills and intrauterine devices, can also cause increased vaginal discharge, especially during the first few months of use.

Excess vaginal discharge and other symptoms, such as spotting and cramping, usually resolve once the body adjusts to the hormonal birth control.

Vaginitis refers to inflammation of the vagina, which can occur from an infection or irritation due to factors such as douches, lubricants, and ill-fitting clothing.

Vaginitis can cause thick vaginal discharge that may be white, gray, yellow, or green.

Other symptoms of vaginitis include:

  • foul vaginal odor
  • an itching or burning sensation in the genital area
  • redness or inflammation of the vagina
  • pain or discomfort when urinating
  • pain during sexual intercourse

Bacterial vaginosis is a condition that results from an overgrowth of bacteria in the vagina. This vaginal infection is the most common among females aged 15–44 years.

The exact cause of bacterial vaginosis remains unclear. Females can develop bacterial vaginosis after sexual intercourse. However, this condition is not a sexually transmitted infection (STI).

According to the Office on Women's Health, those who have bacterial vaginosis may notice a milky or gray-colored vaginal discharge. Some also report a strong, fishy vaginal odor, especially after sexual intercourse.

Bacterial vaginosis can also cause:

  • discomfort when urinating
  • painful burning or itching in the vagina
  • irritation of the skin around the vagina

Vaginal yeast infections result from an overgrowth of the Candida fungus. Females of all ages can develop a vaginal yeast infection, and nearly 70% will have a yeast infection at some point in their lives.

The most common symptom of a vaginal yeast infection is an intense itching in the vagina and vulva.

Vaginal yeast infections can also cause an odorless vaginal discharge that looks similar to cottage cheese.

Vaginal yeast infections are treatable at home using over-the-counter antifungal ointments. Symptoms should improve within a few days. However, severe infections can last longer and may require medical treatment.

Trichomoniasis is an STI caused by a parasite. Females can develop trichomoniasis after having sex with someone who has the parasite.

Although most people who have trichomoniasis do not experience symptoms, some may have an itching or burning sensation in the genital area.

Trichomoniasis infections can also cause excess vaginal discharge that has a foul or fishy odor and a white, yellow, or green color. It may also be thinner than usual.

Healthy vaginal discharge varies from person to person. It also changes throughout their menstrual cycle.

In general, healthy vaginal discharge can appear thin and watery or thick and cloudy. Clear, white, or off-white vaginal discharge is also perfectly normal.

Some females may have brown, red, or black vaginal discharge at the end of their menstrual periods if their vaginal discharge still contains blood from the uterus.

Natural hormonal changes during ovulation can cause an increase in vaginal discharge, which should return to normal after ovulation.

It is not always necessary to see a doctor about excessive vaginal discharge. However, a female may want to consider seeing their doctor if their vaginal discharge has an abnormal appearance.

Yellow, green, gray, or foul-smelling vaginal discharge could indicate an infection. Other reasons to see a doctor include:

  • itching or burning near the genitals
  • discomfort or pain when urinating
  • discomfort or pain during sexual intercourse

Treating excess vaginal discharge depends on the underlying cause.

People can reduce symptoms of vaginitis by avoiding the source of irritation. Doctors can treat bacterial vaginosis and yeast infections using antibiotics or antifungals.

Doctors can also treat trichomoniasis using antibiotics. The CDC recommend that females wait 7–10 days after receiving treatment before having sex.

Treatment for PCOS varies depending on the individual. A doctor may recommend a combination of lifestyle changes and medications to help people manage their symptoms and regulate their hormone levels.

Maintaining a healthy body weight and eating a varied diet low in added sugars may also help improve some symptoms of PCOS. Birth control pills that contain estrogen or progestin can help balance out excess levels of androgens.

Even healthy vaginal discharge can cause discomfort at times. Here are some tips for managing heavy vaginal discharge:

  • Wear panty liners. However, be sure not to let them become too moist, as this can increase the risk of urinary tract infections and vaginitis.
  • Choose breathable underwear made from natural fibers such as cotton.
  • Avoid wearing tight pants.
  • Avoid using hygiene products that contain added fragrances, coloring agents, or other harsh chemicals.
  • Keep the genital area clean and dry.
  • Wipe from the front to the back when using the bathroom.

Excess vaginal discharge can occur as a result of arousal, ovulation, or infections. Normal vaginal discharge ranges in color from clear or milky to white.

The consistency of vaginal discharge also varies from thin and watery to thick and sticky. Generally, healthy vaginal discharge should be relatively odorless.

A female can speak with a healthcare professional if they notice any symptoms of an infection. Some symptoms to look out for include:

  • yellow, green, or gray vaginal discharge
  • foul-smelling vaginal discharge
  • discharge that looks similar to cottage cheese
  • itching or burning in or near the genitals

Doctors can easily treat most vaginal infections using antimicrobial medications. Depending on the severity of the infection, people may see their symptoms improving within a few days to weeks.


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A recent analysis of gender differences in research reporting has found that female scientists are less likely to use positive language to frame their findings than their male counterparts.

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There are some key gender differences in the way that scientists present their findings.

Clinical articles with male first or last authors were more likely to contain terms such as "unprecedented" and "unique" in their titles or abstracts than those with female first and last authors.

The new BMJ study also found that articles that contain such terms are more likely to have higher rates of subsequent citation.

A scientist's rate of citation — that is, how often other articles reference their work — can impact their career prospects, note the study authors, who hail from the University of Mannheim in Germany, Yale University School of Management in New Haven, CT, and Harvard Medical School in Boston, MA.

"Citations are often used to gauge a researcher's influence, and many organizations use cumulative citations explicitly in their decisions regarding recruitment, promotion, pay, and funding," they write.

Gender disparity is a complex issue

In their study paper, the authors outline the gender disparities present in research communities such as the life sciences and academic medicine.

Not only are females in the minority, but they also earn less and win fewer research grants than males. In addition, their articles tend to gain fewer citations than those of their male colleagues.

"The factors that underlie gender disparities in academia are many and complex," says senior study author Dr. Anupam Jena, "but it is important to be aware that language may also play a role — as both a driver of inequality and as a symptom of gender differences in socialization."

Dr. Jena is an associate professor of Health Care Policy at Harvard Medical School. He is also an assistant physician in the Department of Medicine at Massachusetts General Hospital in Boston.

He and his colleagues set out to analyze whether or not females and males differ in how positively they express their research findings.

They also wanted to find out whether or not a link exists between such positive framing and higher subsequent citation rates.

Methods and key findings

In total, the team analyzed more than 101,000 clinical research articles and around 6.2 million general life sciences articles that PubMed had published during 2002–2017.

They searched all the titles and abstracts of the articles for use of 25 positive terms, including "unprecedented," "unique," "excellent," and "novel."

Using a software tool called Genderize, they then determined the likely gender of the first and last author of each article using their first name.

In addition, with help from other established tools, they determined the journal impact and rate of citations of each article.

Their analysis revealed that:

  • Articles with female first and last authors were 12.3% less likely, on average, to frame the findings in positive terms, compared with articles that had male first or last authors.
  • This gender difference was even greater in high impact journals, where females were 21.4% less likely to use positive terms to describe their findings.
  • On average, for clinical journals, the use of positive terms was linked to a 9.4% higher rate of subsequent citations.
  • For high impact clinical journals, the use of positive terms was linked to a 13% higher rate of subsequent citations.

"Results were similar when broadened to general life science articles published in journals indexed by PubMed," the study authors remark, "suggesting that gender differences in positive word use generalize to broader samples."

The researchers say that the findings are in line with those of studies that suggest peer reviewers generally use a higher standard in judging the work of female scientists.

As the study was an observational one, it cannot establish the direction of cause and effect. For instance, it cannot say whether the use of positive language is a driver or consequence of inequality.

However, the results held up after the researchers adjusted them to take out potential influencers, such as field of research, journal impact factor, and year of publication. This suggests that the link is robust.

'Fix the systems, not the women'

The researchers accept that their analysis had a number of limitations. For instance, they were not able to compare the relative scientific merits of the articles or determine the extent to which the editors may have influenced the choice of language.

They argue, however, that the findings show a clear trend in life sciences and academic medicine of regarding studies with male leaders as more important.

In a linked editorial, Dr. Reshma Jagsi, a professor at the University of Michigan in Ann Arbor, and Dr. Julie K. Silver, an associate professor at Harvard Medical School, comment on the research.

To respond with a "fix the women," approach, they say, would show a lack of understanding of the evidence surrounding gender equity.

Instead of asking females to use more positive language in framing their research, they suggest that the focus should be on encouraging males to use a little restraint.

"We must fix the systems that support gender disparities," they argue, urging all those who produce, edit, and consume scientific literature "to counteract bias in order to optimally advance science."

"As a society, we want the best work to rise to the top on its own merits — how it helps us understand and improve health — not based on the gender of the researchers or on the researchers' own opinion about whether their work is groundbreaking."

Dr. Anupam Jena


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Asymmetrical eyes — or eyes that are not the same size, shape, or level as each other — are very common.

In rare cases, having asymmetrical eyes may indicate an underlying medical condition. Most of the time, however, this is not a cause for concern.

Although a person may be aware of their own facial asymmetry, it is unlikely that others will notice.

In fact, most people have asymmetrical features, with research indicating that some degree of facial asymmetry is both normal and desirable.

Read on to learn more about asymmetrical eyes, including some potential causes and home remedies.

Potential causes of asymmetrical eyes include:

Genetics

Genetics can account for uneven eyes and other types of facial asymmetry.

People with asymmetrical eyes may notice that other members of their family have similar features.

Having asymmetrical eyes as a result of genetics is not a cause for concern.

Aging

Imaging studies show a significant link between increasing age and facial asymmetry.

As people age, the soft tissues in the face relax. Cartilage, such as that in the nose, continues to grow while the bones do not. These changes can cause asymmetry.

Lifestyle factors

Some lifestyle factors can contribute to uneven eyes. For example, research on sets of twins has linked smoking with upper eyelid ptosis, also known as droopy eyelids.

Also, excessive sun exposure can change the skin around the eyes. Sun damage may affect one side of the face more than the other, leading to asymmetry.

Bell's palsy

Bell's palsy is a type of sudden, temporary facial paralysis. It causes one side of the face to droop, affecting the smile and one eye.

Its cause is currently unknown, though it may be due to trauma, nerve damage, or a complication of a viral infection.

Other signs and symptoms of Bell's palsy include:

  • changes in tear or saliva production
  • difficulty making facial expressions
  • drooling
  • headaches
  • jaw or ear pain

Trauma

Sustaining a blow to the face or being involved in a vehicle collision can cause damage to the eye area, leading to asymmetry.

Facial trauma may cause enophthalmos, or displacement of the eye. This causes people to appear as if they have a sunken eye.

Sinus conditions

Some sinus conditions can also lead to enophthalmos. These include:

  • chronic maxillary sinusitis
  • maxillary sinus tumors
  • silent sinus syndrome

With these conditions, changes to the eye can happen suddenly or gradually. They may also cause other symptoms, including:

Graves' disease

Graves' disease is an autoimmune condition that causes an overactive thyroid (hyperthyroidism).

People with Graves' disease can develop proptosis, or bulging eyes. When this affects one eye more than the other, it can lead to asymmetry.

Some other signs and symptoms of Graves' disease include:

  • anxiety
  • changes in sexual desire or function
  • enlargement of the thyroid gland (goiter)
  • fatigue
  • heart palpitations
  • menstrual changes
  • sensitivity to heat
  • sweating
  • unintended weight loss

Stroke

Stroke is a medical emergency. It can occur when there is reduced blood flow to the brain.

People can develop sudden facial asymmetry due to stroke. If the drooping is extreme, it may affect a person's vision.

Other symptoms of stroke include:

  • difficulty speaking and understanding
  • a sudden, severe headache
  • loss of balance or coordination
  • numbness or weakness of the face, one arm, and one leg
  • sudden onset of blurred or double vision

In most cases, uneven eyes do not require treatment. This is especially true if the asymmetry is the result of genetics or aging.

However, if an underlying medical condition is contributing to facial asymmetry, people may require treatment for the condition. Treatment may also be necessary if asymmetrical eyes are causing vision problems.

Some people may wish to treat uneven eyes for cosmetic reasons.

Possible treatments include:

Addressing underlying medical conditions

In some cases, treating the underlying medical condition responsible can make asymmetrical eyes seem less noticeable.

For example, treating Graves' disease with radioactive iodine or thyroid medications may stop the eyes protruding.

Those who have a medical condition that is contributing to their eye asymmetry should speak to their doctor about managing their symptoms.

Botox

Botox is a nonsurgical option for facial asymmetry. It involves injecting Botox, which is a muscle relaxer that comes from the bacterium Clostridium botulinum, into the area around the eyebrows.

Botox treatment lifts the brows, reducing the appearance of uneven eyes. The effects of Botox will typically last for around 3–6 months.

Brow lift

A brow lift is a cosmetic procedure that elevates the eyebrows. The aim is to give the face a more youthful appearance and provide greater facial symmetry.

There are different types of techniques a surgeon might use to lift the brow, but they will usually perform the procedure while a person is under general anesthesia.

Some potential risks of a brow lift include:

  • bleeding
  • further asymmetry (though additional surgery can correct this)
  • hair loss or changes to the hairline
  • infections
  • an allergic reaction to the anesthetic
  • scarring
  • temporary or permanent skin numbness

The results of a brow lift are not permanent. Aging and sun damage can cause the skin to droop again.

Blepharoplasty

Blepharoplasty is a type of cosmetic surgery that corrects uneven eyelids. It is a frequently performed aesthetic procedure.

During the procedure, a surgeon will remove excess fat, muscle, or skin from around the eye area to make the eyes appear more symmetrical.

After this surgery, a person may experience temporary bruising and swelling.

Some other risks include:

  • bleeding
  • infections
  • an allergic reaction to the anesthetic
  • scarring

Less commonly, the procedure may cause chronic conjunctivitis (inflammation of a part of the eye) or swelling that lasts for more than 3 months.

In rare cases, blindness can occur.

Orbital surgery

Orbital surgery is surgery on the eye socket (orbit). There are a few different types of orbital surgery, depending on the problem and the area of the eye socket that it affects.

A surgeon may carry out procedures to:

  • repair fractures
  • remove tumors
  • remove bones or fat to treat the effects of Graves' disease
  • reconstruct the anatomy of the socket

Like all surgeries, these procedures carry risks.

If they wish to, people with minor facial asymmetry may be able to use home remedies to make their eyes appear more symmetrical.

Some options include:

Makeup techniques

Various contouring and highlighting techniques can reduce uneven eyes and eyebrows. Makeup artists and online tutorials can provide guidance on this.

Some people even use hairstyling techniques to draw attention away from their eyes.

Eyelid tape

Putting eyelid tape on a sagging eyelid can lift the skin, hiding the sagging and asymmetry.

These thin, transparent strips are available to buy in beauty stores. They are also available online.

Asymmetrical facial features are normal and common. They are often the result of genetics, aging, or lifestyle factors.

Most people do not notice facial asymmetry in others, and research shows that it may even be a desirable feature.

However, for those who wish to address uneven eyes, several cosmetic procedures and home remedies are available.

In some cases, a medical condition may be causing facial asymmetry. In these cases, treating the underlying condition may help reduce the appearance of uneven eyes.

Anyone concerned about their facial asymmetry can speak to their doctor. It is also a good idea to seek medical attention if the asymmetry came on suddenly or if it is causing vision problems or other symptoms.

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Breast reduction surgery, which doctors may call reduction mammoplasty, is a medical procedure that reduces the overall size of a person's breasts.

According to the authors of a 2019 article, breast reduction surgery is one of the most common cosmetic procedures.

In this article, we discuss breast reduction surgery, including the procedure and how it differs between males and females, what to expect during recovery, and the associated risks.

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A person may benefit from breast reduction surgery if their large breasts are causing back pain.

People who have overly large breasts that cause neck, shoulder, or back pain may benefit from breast reduction surgery.

Large breasts can make exercising and other activities difficult. Having large breasts can also have negative psychological effects, as some individuals feel self-conscious about their breast size.

Doctors may recommend breast reduction surgery for males who have gynecomastia, which is a medical condition in which the breast tissue swells due to high levels of estrogen.

Breast reduction surgery can help improve people's physical and psychological well-being.

A doctor will first determine whether someone is a candidate for the surgery. This evaluation can include:

  • a routine breast examination
  • a mammogram
  • the reviewal of a person's medical history
  • urine, blood, and other lab tests

A breast reduction usually takes place under general anesthesia. Most people go home straight after surgery, but some do spend 1–2 nights in the hospital.

Before surgery, a person may need to stop taking over-the-counter anti-inflammatory medications, such as aspirin and ibuprofen, as these can increase bleeding.

Doctors also encourage people who smoke to quit several weeks before the procedure. Smoking will increase the risk of nipple or areolar damage, tissue necrosis, and other complications. Therefore, it is essential that people discuss any tobacco product use, including vaping, with the doctor.

The plastic surgeon performing the procedure will use a marker to draw guidelines for the incisions. The size of the breasts, the position of the nipples, and the person's preferences will determine the exact incision pattern.

The wise pattern, or anchor pattern, is the most common skin removal technique for breast reduction surgery, according to the authors of one 2019 article.

A surgeon starts by making an incision around the areola. Then, they continue the incision beneath the breast, at which point they may remove excess skin from the sides of the breast.

After making the incisions, the surgeon will remove excess breast tissue, reshape the remaining tissue, and reposition the nipple and areola. The surgeon will close the remaining skin with sutures and surgical tape.

If the breasts are particularly large, it may be necessary to remove the nipples and areolas from the body and then place them back on the breasts in a procedure called a free nipple graft. The nipples will regrow into the new position, but they will usually be permanently numb afterward.

After the procedure, the surgeon or a nurse will wrap the breasts in gauze bandages. The insertion of small tubes into the breasts is sometimes necessary to drain excess fluid and reduce swelling after the operation. People should avoid showering until a nurse removes these drainage tubes.

The goal of male breast reduction surgery is to remove any excess fatty or glandular tissue to achieve a flatter, firmer-looking chest.

Extra breast tissue in males is called gynecomastia.

Males undergoing breast reduction surgery will receive a local or general anesthetic before the procedure. The procedure can involve liposuction, excision, or a combination of the two.

Liposuction can correct gynecomastia that is due to excess fatty tissue. The surgeon will make micro-incisions along the sides of the breast and insert a thin tube called a cannula. The surgeon will use the cannula to loosen and remove excess fatty tissue.

Gynecomastia can also cause excess skin and glandular breast tissue. In this case, a surgeon will use excision techniques to cut off this tissue.

After reducing the size of the breast, the surgeon will reposition the areola and nipple, if necessary, and close the incisions with sutures.

Most people can go home a few hours after the surgery, as long as they do not experience any complications.

Before they leave the hospital or clinic, they will receive specific postoperative instructions that cover what types of oral and topical medications can help reduce pain and scarring and prevent infections.

People will need plenty of rest while their breasts heal. They should avoid any movements that might stretch the chest muscles or tear the sutures.

People may have difficulty lifting their arms during the first couple of weeks, so they may want to ask a close family member or friend to help them during this time.

They should avoid heavy lifting for several weeks or until a doctor removes their sutures.

People may experience minor complications after breast reduction surgery, such as:

  • open wounds or slow healing of the incisions
  • excess fluid in the breast tissue
  • cellulitis, or infection of the connective tissue
  • loss of sensation in the nipples or breasts
  • asymmetric appearance of the breasts or nipples
  • prominent or thickened scars
  • allergic reactions to anesthesia or other medications

Smoking can increase the risk of complications and delay the healing process. People who have obesity may also have a higher risk of postoperative complications.

It is important to note that the breasts may have very small asymmetries after surgery. Most breasts are not exactly the same size or shape to begin with, and the surgeons do try to remove more tissue from the bigger side. However, after the procedure and months after the completion of the healing process, there may be small differences between the breasts.

Also, breast reduction surgery can affect a person's ability to breastfeed.

According to the American Society of Plastic Surgeons, breast reduction procedures cost, on average, approximately $5,680. People will also need to pay for the cost of consultations and follow-up appointments.

Some insurance companies may partially or completely cover the cost of breast reduction surgery if a person needs this procedure to relieve chronic pain or other medical problems.

People who are thinking about having breast reduction surgery may wish to contact their insurance company to inquire about coverage.

Breast reduction surgery is a relatively safe and effective medical procedure that reduces the overall size of a person's breasts.

A plastic surgeon will remove excess fat, breast tissue, and skin through incisions underneath the breasts. They may also reposition the nipple and areola.

Breast reduction surgery is an outpatient procedure with minimal risks. Rare complications include infection, scarring, and loss of sensation in the nipples or breasts.

People considering breast reduction surgery can make an appointment with a board certified plastic surgeon. At the appointment, the surgeon will evaluate a person's medical history and current health status to determine whether breast reduction surgery is a suitable option.


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Asexuality describes a lack of sexual attraction. Asexual people may experience romantic attraction, but they do not feel the urge to act on these feelings sexually.

Asexuality is a sexual orientation, like being gay or straight. It is different from celibacy or abstinence. Asexuality exists on a spectrum, with much diversity in people's experiences and desires for relationships, attraction, and arousal.

An estimated 1% of the population is asexual, though experts believe the numbers could be higher.

This article looks at what asexuality is, what it is not, and some of the spectrums that people may identify with.

Asexuality is a sexual orientation, just like homosexuality, bisexuality, and heterosexuality. Asexual people are sometimes known as ace or aces for short.

According to The Trevor Project, asexual is an umbrella term that exists on a spectrum. It describes a variety of ways in which a person might identify. While most asexual people have little interest in having sex, they may experience romantic attraction. Others may not.

Asexual people have the same emotional needs as everyone else. Most will desire and form emotionally intimate relationships with other people. Asexual people may be attracted to the same sex or other sexes.

Every asexual person will have a different experience, which may include:

  • falling in love
  • experiencing arousal
  • having orgasms
  • masturbating
  • getting married
  • having children

In the initialism LGBTQIAP+, the A stands for asexual spectrum, or a-spec. Several identities fall under this category.

Asexual people have the same emotional needs as everyone else. Everyone is different, and how individuals fulfill those needs varies widely.

Some aces may want romantic relationships. They can feel romantically attracted to other people, which may include the same sex or other sexes.

Other aces prefer close friendships to intimate relationships. Some will experience arousal, and some will masturbate while having no interest in having sex with another person.

Some asexual people do not want to have sexual contact, while others may feel "sex-neutral." Other asexual people will engage in sexual contact to gain an emotional connection.

Other common identities which fall into the asexual spectrum include:

Aromantic

Aromantic people experience little or no romantic attraction. They prefer close friendships and other nonromantic relationships.

Many aromantic people will form queer platonic partnerships, or QPPs. QPPs are platonic yet have the same level of commitment as romantic relationships. Some people in QPPs choose to live together or have children together.

Demisexual

People who are demisexual experience sexual or romantic attraction, but only after they have formed a close, emotional connection with someone.

Graysexual or grayromantic

Graysexual or grayromantic people identify somewhere between sexual and asexual. This can include but is not limited to:

  • people who only experience romantic attraction sometimes
  • people who only experience sexual attraction sometimes
  • people who experience sexual attraction but have a very low sex drive
  • people who desire and enjoy sexual or romantic relationships but only in very specific circumstances

Asexuality is a sexual orientation. Typically, an asexual person would always have had little interest in sexual contact with other people. It is not the same as suddenly losing interest in sex or choosing to abstain from sex while still experiencing sexual attraction.

Asexuality is not the same as celibacy or abstinence. If someone is celibate or abstains from sex, this means they have taken a conscious decision to not take part in sexual activity despite experiencing sexual attraction.

It is also important to note that asexuality is not the same as hypoactive sexual desire disorder or sexual aversion disorder. These are medical conditions associated with anxiety towards sexual contact. Social pressure may make asexual people feel anxious about sex, but that is different.

Asexuality is not:

  • abstinence on religious grounds
  • sexual repression, aversion, or dysfunction
  • a fear of intimacy
  • loss of libido due to age, illness, or other circumstances

Just as some people are gay or bisexual, some people are asexual. If someone is asexual, it means they have no or little interest in sex. They may still feel romantic attraction, but equally, they may not.

There is a wide range of identities on the asexual spectrum, from people who experience no sexual or romantic attraction to people who engage in sexual contact under some conditions. Many asexual people form meaningful, lasting relationships, and some get married or have children.

Asexuality is not the same as celibacy or abstinence, both of which mean someone experiences sexual attraction but chooses not to act on it.


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An analysis of how the retina of the eye scatters light shows promise as an aid for the early diagnosis of Alzheimer's disease.

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Examining how the retina disperses light can provide insight into Alzheimer's disease.

Scientists from the University of Minnesota in Minneapolis came to this conclusion after carrying out a recent study, the findings of which appear in ACS Chemical Neuroscience.

The researchers investigated retinal hyperspectral imaging (HSI) as a potential technique for early Alzheimer's detection in 35 people.

HSI is an emerging imaging method in medicine. As a diagnostic aid, it can provide valuable information about tissue composition and structure.

Scientists can take HSI scans of the retina using a special camera that attaches to a spectral imaging system.

The method, which takes about 10 minutes to administer, is noninvasive and does not require the injection of tracer substances.

Need for biomarkers of early Alzheimer's

Alzheimer's disease is responsible for 60–80% of cases of dementia, an incurable condition that progressively impairs memory and thinking to the point that independent living is no longer possible.

The presence of toxic clumps of beta-amyloid protein in the brain is an established hallmark of Alzheimer's disease.

If there was a way to detect the toxic beta-amyloid clumps in their early stages, this could greatly improve early diagnosis and increase the potential for treatment to delay disease progression.

As the retina is an extension of the brain, it is possible for these toxic protein clumps to form there as well.

This knowledge has spurred scientists to look for Alzheimer's biomarkers in the retina, which is easy to examine noninvasively.

Retinal HSI uses light scattering

Retinal HSI applies the principle of Rayleigh scattering, which is the dispersion of electromagnetic radiation by particles that are much smaller than the wavelength of the radiation.

In their study paper, the authors explain that because of this principle, they would expect retinas with small, early clusters of beta-amyloid to scatter the light in a different way than retinas that either lack the protein clumps or have clumps that are more developed.

The team had already demonstrated the effectiveness of the technique in mouse models of Alzheimer's disease.

The new study "concerns the translation of our [retinal HSI] technique from animal models to human [Alzheimer's disease] subjects," write the authors.

In the new investigation, the team compared retinal HSI results from 19 people at different stages of Alzheimer's with those of 16 controls who did not have the disease and also had no family history of it.

Retinal HSI picks out MCI stage

For each participant, the team took HSI scans from different parts of the retina, including the optic disc, the perifoveal retina, and the central retina.

The results showed that individuals whose retinal light scatter had the "largest spectral deviation from control subjects" were those whose memory tests indicated that they were at the mild cognitive impairment (MCI) stage.

In addition, the researchers found that the amount of spectral deviation correlated with the memory test scores of those at the MCI stage.

They suggest that these results indicate that the technique's sensitivity is higher in the early stages of Alzheimer's disease.

Age and certain eye conditions, such as glaucoma and cataracts, appeared to have little or no effect on the results.

The study's first and corresponding author, Swati S. More, Ph.D., who is an associate professor in the Center for Drug Design at the University of Minnesota, envisages retinal HSI becoming part of annual eye tests that could help identify individuals who might need a further exam or treatment.

"The preliminary results from this study are promising and have laid the foundation for next steps involving rigorous validation of the technique in a clinical setting."

Swati S. More, Ph.D.


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