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Health Highlights

Why can’t you see colors well in the dark? Do fish have eyelids? Why does saltwater sting your eyes? Get answers to these questions and more in this collection of videos featuring NIH scientists.

Get the facts about depression, including the types, signs, risk factors, and treatments available.

Mammography is an imaging method used to spot breast cancer and other diseases. Read about this helpful tool, including when to ask a doctor about scheduling one.

Don’t let bad food spoil your celebrations this holiday season. Find out how to keep you and your loved ones safe from food poisoning.

Featured Tools

Your Healthiest Self: Wellness Toolkits — Your relationships, your emotions, your surroundings, and other aspects of your life impact your overall health. Find ways to improve your well-being with NIH's wellness toolkits.