Is sugar addictive?

U.S. innovation ecosystem is envy of world. Here’s how it got started.

Did a socially awkward scientist set back airborne disease control?

You went to the doctor and came out feeling worse

A dietary swap that could lengthen your life?

New hope for repairing eye damage once thought untreatable

Cancer? No, thank goodness, it’s just high cholesterol.

How much sleep do you need?

Food, water — and a friendly face

Older adults at highest risk for suicide, yet have fewest resources

Harvard startup creating a new class of antibiotics

Eating citrus may lower depression risk