Health & Safety

In a small trial, an experimental vaccine protected 100 percent of people at high risk for Ebola. But more data are needed to figure out exactly how well the vaccine works.

Debra Jarvis had breast cancer, but it doesn't define her, she says. Jarvis explains how clinging to the identity of "survivor" sometimes stifles personal growth.

We often discover cancer after it's too late to treat. Jorge Soto is in the process of creating a simple, fast and cheap method for early cancer detection and all it takes is a few drops of blood.

Dr. David Agus believes that current research is too narrowly focused on the specifics of cancer. Instead, he thinks broader, more interdisciplinary methods are needed to control and treat it.

Dr. Dean Ornish studied how lifestyle changes could help people with chronic heart disease; he wanted to figure out if there was a way to do the same with some types of cancer.