Innovation & Technology

Mechanical heart valves are often safer than natural tissue for mitral valve replacement until age 70.

Implantable devices could detect and squelch urges

Frontiers in science, technology and medicine

A health-care revolution in the making

Patients were bothered by the sounds of their eyeballs, their digestive systems, their blood. One look in their eyes, and a surgeon-scientist knew why

Video gamers help develop a better test for tuberculosis

A sampler of diagnostics emerging from Stanford

How new tools will enable us to predict and prevent disease

The promise of precision health

The evolving world of surgery