Search Health Topics
Search the NIH Guide
body mass index (BMI)
Type 2 diabetes, the most common type of diabetes, can often be prevented or delayed. Learn what you can do to reduce your risk factors.
DNA is what makes each species unique. Discover what DNA is, what it does, and more.
Evidence shows that the best way to boost the chance of living a long and active life is to follow the advice you likely heard from your parents.
Are you tempted to take a vacation from your healthy habits? Explore these tips to stay on track.
Discover, Explore, Learn — Fun and educational materials related to health, science, and the environment we live in today.