Neanderthal Gene Still Shapes Muscle and Jaws in Some Living Humans
Neanderthals vanished roughly 42,000 years ago, but a piece of their biology appears to be quietly at work…
Common Sleep Supplement May Also Ease Chronic Musculoskeletal Pain, Study Suggests
A large review of clinical trials published this week in the journal PAIN suggests that melatonin — the…
Gut microbes emerge as potential players in estrogen-driven cancers
Scientists say gut microbes may do more than recycle estrogen, but turning the endocrine-microbiome axis into a cancer…
Hormone cycles dictate how the brain absorbs neuroprotective drugs
Consider what we ask of a clinical trial. We gather people who differ in nearly every way that…
Too Many Men Are Taking Testosterone, Study Suggests: Risk and Benefits
America is reaching peak testosterone. In 2026, interest in the hormone is everywhere, from T-maxxing trends on social…
Drinking less water daily spikes your stress hormone
Researchers discovered that people who don’t drink enough water react with sharper cortisol spikes during stressful events, explaining…
Adding progesterone to gender-affirming hormone therapy improves breast growth for transgender people
The addition of the hormone progesterone to gender-affirming hormone therapy leads to increased breast growth for transgender people…