Brain Protein Tied to Alzheimer's Spotted in Young Adults
People as young as 20 have amyloid buildup, but researchers aren't sure what it means
Common Class of Drugs May Be Linked to Pneumonia Risk
But more research is needed before scientists say anticholinergics cause the infection
Health Tip: Count Your Calories
Are you trying to maintain, lose or gain weight?
In Vitro Births Continue to Rise in U.S.
Researchers also report drop in number of multiple embryo transfers, twin and triplet birth rates
Just How Big Is a Normal Penis?
Researchers size up thousands to arrive at averages
Obamacare and the Supreme Court: What's at Stake
Millions of consumers could lose health insurance subsidies in dispute over language in the law