How much sleep do you need?

Illustrations by Liz Zonarich/Harvard Staff Health How much sleep do you need? And what you can do to get it February 28, 2025 3 min read Part of

Food, water — and a friendly face

Ding Liu (right), a postdoctoral researcher in the lab of Catherine Dulac (left).Veasey Conway/Harvard Staff Photographer Health Food, water — and a friendly face Health