Even if you think you have an energetic lifestyle, sitting is how most of us spend a good part of our day. And it's killing us — literally — by way of obesity, heart disease, and diabetes.
“Dr. Nancy” tackles everything from the latest health news, wellness tips, medical breakthroughs and the debate over health care reform.
Read an excerpt from her new book.
Video: A picture reportedly taken by a flight attendant of an obese man spilling out of his seat has raised a debate over how airlines treat the overweight.