Hormone therapy for breast cancer might reduce a woman's later risk of dementia and Alzheimer's disease, a new study finds.
Overall, hormone therapy is associated with a 7% lower risk of...
The stress hormone cortisol appears to play a role in tough-to-treat type 2 diabetes, a new study finds.
About 1 in 4 people (24%) with tough-to-trea...
Comedian Amy Schumer has disclosed that she has been diagnosed with Cushing's syndrome, a condition that arises when there is too much cortisol in the body.
Five of eight British children who received human growth hormone from the pituitary glands of deceased donors went on to develop early-onset Alzheimer's disease many decades later, researchers report.
Researchers at University College London (UCL) suspect that the growth...
Transgender people transitioning to male (transmasculine) identity typically take testosterone therapy as part of the process.
There have been worries that the treatment might spur erythrocytosis, an abnormally high concentration of red blood cells in blood that could pr...
Many breast cancer survivors take a hormonal drug after cancer treatment to stave off a recurrence, but new research suggests these drugs may be less effective in women who are obese.
Breast cancer cells in hormone-positive breast cancers are fueled by the female se...
In the face of an ongoing and widespread legal assault on transgender rights -- one that threatens to cut off access to critical aspects of trans health care -- a pair of new studies suggest that gender-affirming medical care is a lifesaving treatment for those who need it.
Millions of stray cats roam the world over, and surgical sterilization has long been the primary method of population control.
But a small new study shows promising results for a one-and-done contraceptive injection.
Researchers say this first-of-its-kind appr...
If you are one of the millions of people distressed by low libido, help may be on the way in the form of a new hormone shot.
Two new British studies suggest that injections of the hormone kisspeptin could boost sexual desire in men and women. When folks with low sex...
The "love hormone" oxytocin might not play the critical role in forming social bonds that scientists have long believed, a new animal study suggests.
Prairie voles bred without receptors for oxytocin display the same monogamous mating, attachment and parenting behaviors ...
As numerous U.S. states move to restrict transgender health care, a new study shows that such care can substantially improve teenagers' mental health.
The study, published in the New England Journal of Medicine, followed transgender and nonbinary teenagers who r...
When young adolescents strongly identify with a gender that does not match their gender at birth, one option is to offer a reversible treatment that can delay the onset of puberty.
If the desire to transition endures, that delay can be followed with a second step: hormon...
Men with Down syndrome may think and remember better when treated with a brain hormone normally associated with f...
Humans and dogs undoubtedly share a powerful bond, but can dogs cry when overcome with emotion?
According to a recent study, possibly the first to try to answer that questi...
While cats often prefer to be alone and closely guard their territory, some seem to thrive on togetherness even at a crowded shelter.
Chalk it up to chemistry.
The strange smells and sounds at an animal shelter can stress out even the most placid pup, and invasive tests to see if they need medicine to calm down only add to the anxiety.
The "love hormone" oxytocin may be able to turn highly territorial lions into social sweethearts, researchers say.
Lions typically guard their turf fiercely, which can be a problem when they're on reserv...
Although Texas Gov. Greg Abbott has deemed it "child abuse," access to "gender-affirming" services cuts the odds of severe depression and maybe even suicide among transgender teens, a new study finds.
Investigators came to that conclusion after tracking the mental health...
Worried that a COVID-19 vaccine might hamper your workout? New research suggests you can hit the gym with minimal effects.
In a study of 18 healthy people who received a COVID-19 vaccine, the participants were monitored while they did cycling workouts before and two...
Men compelled to find myriad new partners and ways to have sex may be driven by high levels of the so-called "love hormone," oxytocin, new research suggests.
Oxytocin, which is produced by the...
Americans have tossed and turned their way through the pandemic, and a new study shows they are increasingly turning to melatonin in an attempt to get some good rest.
But the researchers also issued a warning, because some folks are using amounts that pose a risk to thei...
TUESDAY, Jan. 18, 2022 (HealthDay Now) -- Advanced forms of hormone therapy are very effective at keeping prostate cancer in check, but they also can double a man's risk of falling into depression, researchers have found.
Prostate cancer patients treated with the latest ...
Transgender people get greater mental health benefits if they start gender-affirming hormone treatment when they're teens instead of waiting until they're adults, a new study finds.
"This study is particularly relevant now because many state legislatures are introducing ...
Millions of people are at increased risk of type 2 diabetes and high blood pressure and don't even know it, due to a hidden hormone problem in their bodies.
As many as 1 in 10 people have a non-cancerous tumor on one or both of their adrenal glands that could cause the g...
Pregnant women who use hair dyes or straighteners may have relatively lower levels of pregnancy-supporting hormones, a recent study suggests.
Researchers found that amon...
A boy or a girl? New research suggests that the air pregnant women breathe or the water they drink could play a role in their baby's sex.
The finding stems from t...
People who were exposed to a particular hormonal medication in the womb may have a heightened risk of cancer later in life, a new study suggests.
Researchers found the increased cancer risk among adults whose mothers had been given injections of a synthetic progesterone ...
A key to reduced Alzheimer's disease risk in women could be how much of the hormone estrogen they're able to stockpile over the years, new research suggests.
Certain lifetime choices -- such as having more children, taking hormonal birth control or taking hormone th...
Despite hints of promise from early research, a new clinical trial finds no evidence that kids with autism benefit from nasal sprays containing the "love" hormone oxytocin.
Researchers called the findings disappointing.
But they said the study also offers important...
What launches guys on serial sexual conquests and prompts solo activity among women?
It's testosterone, of course.
As the primary male sex hormone, it plays a leading role in the sexual development of guys. But folks often overlook the role it plays in female sexua...
The length of a woman's menstrual cycle as she nears menopause could reflect her future risk of heart disease, researchers report.
Some women's menstrual cycles become longer as they approach menopause, while others' cycles remain stable. This new study found that the wo...
Treating polycystic ovary syndrome (PCOS) -- the most common hormone disorder in women of child-bearing age -- is costly.
In 2020, diagnosing and treating this disorder cost an estimated $8 billion in the United States, according to a
Transgender people have double the odds of dying early compared to folks whose identity matches the sex they were assigned at birth (cisgender), a long-term study finds.
And the added risk did not decrease over time, according to an analysis of data collected from more t...