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Health

Coral reefs: How they work, why they're in danger, and why it matters

Health

Countries most affected by tsunamis

Health

15 ways air travel can affect your health

Health

Countries with the best life expectancy

Great-grandmother celebrating her 100th birthday with her great-granddaughter with a chocolate cake.

Health

Biggest outbreaks in every state from the past decade

Health

Best exercises that burn calories

Person photographed from behind in pool checking watch after swimming laps

Health

States getting the least sleep

Health

The most common health conditions affecting Americans

Health

Sunniest states in the U.S.

Health

What the average American eats in a year

View from inside refrigerator as person reaches for groceries.