
Key takeaways
- A third to a half of all cancers are preventable, according to the World Health Organization.
- U.S. cancer deaths have been on the decline for the last three decades, according to the American Cancer Society.
- A few relatively simple lifestyle changes can significantly reduce your cancer risk, experts say.
In a world full of bad news, here’s a bit of good: A third to a half of all cancers are preventable.