Survival of the fittest

Published: March, 2006

Knowing your cardiovascular fitness, and improving it, can help you live longer and better.

You can probably rattle off many of the truly wonderful benefits of exercise, which range from protecting the heart to extending life and preserving memory. But do you know how exercise and physical activity do these things? Neither do the experts.

To continue reading this article, you must log in.
  • 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 »