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Health & Medicine

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YouTube on remote with computer screen in background.

Consulting Dr. YouTube

How digital misinformation may keep you from a good night’s sleep



The gap between our teeth

More older Americans are losing theirs. Medicare doesn’t cover dental. Not a coincidence.


Illustration of smiling faces growing on trees. (Illustration by Davor Pavelic/Ikon Images)

Happy? Want to learn how to be?

Harvard professor aims to ignite mass movement through podcasts, books, new lab at Kennedy School for research, leadership training


Cyclist in bike lane.

Is cycling safe?

We shouldn’t take no for an answer, researcher says


Natalie Dattilo

A laugh a day keeps the doctor away?

No one knows why we do it, but it’s free, has no known side effects, and experts say it lifts spirits, lowers stress, makes us feel connected