Recent Blog Articles

Why is exercise protective against cancer?

September 01, 2008

Many studies show that people who are physically active are less likely to cancer. Such associations don’t prove that exercise prevents cancer. But they are a hint. And if there’s a biological explanation for a protective effect, the case gets that much stronger.

Here are several biological explanations mentioned in the Physical Activity Guidelines Advisory Committee (PAGAC) report, which laid the scientific groundwork for the new set of exercise guidelines due out in October 2008.

To continue reading this article, you must log in.

Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.

  • Research health conditions
  • Check your symptoms
  • Prepare for a doctor's visit or test
  • Find the best treatments and procedures for you
  • Explore options for better nutrition and exercise
Learn more about the many benefits and features of joining Harvard Health Online »

I'd like to receive access to Harvard Health Online for only $4.99 a month.

Sign Me Up

Already a member? Login ».


As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles. No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.