Editors' picks

Locking tumors in their boxes

The science of a tai chi strike

Nearly everywhere, life spans have extended. Now what?

A letter from the director of the stanford center on longevity

Populations in most poor countries are aging rapidly -- with ominous consequences

The field grows up

Stem cell research offers clues -- but don't hold your breath

One man's quest to lengthen life by cutting calories

What your mom ate as a child could give you a stroke in middle age

Can the system keep up with demand for new hips and knees?