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How Fit Are You, Really?

fitness age

Story at-a-glance -

  • Fitness age is based on the concept of VO2 max, which is the maximum amount of oxygen you can take in while exercising
  • Fitness age may be a better indicator of longevity than chronological age
  • High-intensity interval training (HIIT) has been found to improve VO2 max and lower your fitness age
  • You can take an online test to determine your fitness age

By Dr. Mercola

You have a chronological age, the one dictated by the days on the calendar and for which you probably celebrate birthdays each year. But you also have a biological age, which is based on the age of your body’s systems.


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