The granddaddy of exercise research, Steven Blair, talks with Chip Lavie about the cardiovascular and mortality benefits of even small amounts of exercise.
From 'Living Biblically' to becoming a 'Know-It-All,' journalist and author A.J. Jacobs talks with Medscape's Eric Topol about being the subject (and punchline) of his comedic stories.
When a person is dying, there may be lots of pressure to give access to drugs still in development. This happened during the recent Ebola outbreak. But there are serious pros and cons to doing this.