- Aging and population growth are behind a reported cancer increase
- Cancer risk factors have spread into low- and middle-income nations
- There are steps you can take to reduce your cancer risk
CNN conditions expert Dr. Otis Brawley is the chief medical officer of the American Cancer Society, a world-renowned cancer expert and a practicing oncologist. He is also the author of the book "How We Do Harm: A Doctor Breaks Ranks About Being Sick in America."
(CNN)The World Health Organization is sounding the alarm: cancer is rapidly becoming a global pandemic.