Editors' picks

Growing mini-intestines in a dish

Cutting hours watched reduces weight gained

Shots get the once-over

Rare back-to-back surgery ends well

It could wreck your immune system. Or save your life

Probing the puzzles of death and disease

Why does the muscle fail?

Study adds wrinkle to fasting-longevity research

Teaching medicine, one mystery at a time

A Q&A with Tess Gerritsen, medical mystery writer