Some people have reported getting a lighter or heavier period after getting a COVID-19 vaccine. Cause for concern? Doctors say no. Could it be a temporary side effect? That's harder to determine.
Alzheimer's researchers are trying new treatment approaches, including trying to boost the immune system, remove toxic tangles of protein and stimulate brain waves with light and sound.
U.S. Olympic heptathlete Annie Kunz says tracking her monthly cycles and learning she needs to eat more and get more naps when she's fatigued has already improved her athletic performance.
Weeks after the Food and Drug Administration approved the Alzheimer's drug Aduhelm, doctors are struggling to figure out who should get the drug and how to use it safely.
To get a new drug for postpartum depression, some insurers want women to try other drugs first and even electroconvulsive therapy. It could be a test for California's new mental health parity law.
Clinical trials show Wegovy triples the average weight loss seen with other drugs. Whether it will reach many patients largely depends on whether insurers decide to cover it.
Scientists successfully treated a rare disease with the experimental gene-editing technique. It could open the door to new ways of treating more common disorders in the future.
Health officials are investigating reports of mostly mild, temporary and treatable heart inflammation that may or may not be causally linked to vaccination with an mRNA vaccine against COVID-19.
Experts now say the procedure is the most effective treatment for severe childhood obesity, which affects a growing number of kids. But stigma and insurers often stand in the way.
A plaque-busting Alzheimer's drug called Aduhelm has yet to prove it can preserve memory and thinking. Even so, its approval by the Food and Drug Administration is making some patients opitimistic.
The COVID vaccines haven't proved very effective for people living with organ transplants. But getting a third dose of the mRNA vaccines gave a big bump in antibody levels in a new study.
An analysis of blood from people who had received the Johnson & Johnson COVID-19 vaccine found a lower level of neutralizing antibodies against viral variants but a strong response involving T cells.
Instead of putting genetic instructions into people whose cells then make a viral protein, the vaccines from Novavax, Medicago and Sanofi carry a spike protein payload.
The FDA has until Monday to decide whether to approve the first new Alzheimer's drug in nearly two decades. Two big studies of the drug produced conflicting results.