How to Grow a New Limb

How to Grow a New Limb

Every day, the human body replaces an estimated 10 billion cells lost to injury or ordinary cellular housekeeping. More dramatically, cut a worm into two fragments and each fragment regenerates

What Is Precision Medicine

What Is Precision Medicine

By Dr. Harold Varmus, Nobel Laureate and Director of the National Cancer Institute. On January 30, President Obama rolled out details on his Precision Medicine Initiative, a new effort that