How Much Exercise Do You Need? Physical Activity, Fitness, and Longevity
How much exercise adults need, why cardiorespiratory fitness matters, and how activity affects heart health, blood sugar, cancer risk, brain health, and longevity.
27 min readActivity, Fitness & VO₂ Max
Understand your fitness, choose a way to measure it, and explore how to improve it.
Start with What’s a Good VO₂ Max? Age Chart, Calculator, and How to Improve It.
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5 articles · Newest first
How to Improve VO2 Max: A Simple 8-Week Plan
A practical plan to improve VO2 max with aerobic volume, interval training, recovery, and repeat testing without turning fitness into a second job.
5 min readVO2 Max Field Tests: Cooper, Rockport, 1.5-Mile Run, and Beep Test
A practical guide to choosing a VO2 max field test, understanding the equations, and using field estimates without overreading the number.
5 min readApple Watch and Garmin VO2 Max Accuracy: What to Trust
A practical guide to wearable VO2 max accuracy, including why Apple Watch and Garmin estimates are useful for trends but imperfect for exact fitness ranking.
4 min readVO2 Max by Age: Chart, Calculator & Good Scores
Compare VO2 max by age and sex, see what counts as a good VO2 max, and estimate your score with Cooper, Rockport, 1.5-mile, or shuttle tests.
6 min read