How much exercise do you need to live longer?
On this page
Less than you’d fear for most of the benefit, and more keeps helping. In 661,137 adults, people doing less than the guideline still had 20% lower risk of dying than people doing nothing. Meeting the guideline of 150 minutes a week brought 31%, and 3 to 5 times the guideline 39%.
What we’d do
Aim for 150 to 300 minutes a week of brisk walking or harder, plus two strength sessions. If you love it, do more, since nobody found harm even at 10 times the guideline. If you’re at zero today, a 10-minute walk counts, and the first hour a week is the one that changes the most.
Why it feels like you need hours
Fitness culture is full of marathons, hour-long classes and 10,000 steps. If that’s the bar, most people feel they’ve failed before they start, so they don’t. The studies show a curve that drops steeply at the start, so the first little bit of movement does the most.
The simple version
Exercise works like water when you’re thirsty. The first glass makes the biggest difference, the second still helps, and by the fifth you’ve got most of what you needed.
The curve
The biggest US habits study, of 123,219 adults, measured how risk fell with each step up in weekly exercise, compared with doing none:
| Exercise a week | Risk of dying, against none |
|---|---|
| Under 1 hour | 35% lower |
| 1 to 3.4 hours | 44% lower |
| 3.5 to 5.9 hours | 50% lower |
| 6 hours or more | 56% lower |
Going from nothing to under an hour a week gave the biggest single drop. Every step after that still helped, by less each time.
How much is too much?
A 2015 pooled analysis of 661,137 adults followed for about 14 years found the benefit leveled off at 3 to 5 times the guideline minimum, at 39% lower risk. Even at 10 times the minimum, people still had 31% lower risk than those who did nothing, so there was no sign of harm.
A 2022 study of 116,221 Americans followed for 30 years found much the same. People doing about 150 to 300 minutes a week of vigorous activity, or 300 to 600 minutes of moderate activity, got nearly all the benefit there was to get.
What counts
Moderate means you’re breathing harder but can still talk, like brisk walking or easy cycling. Vigorous means you can only say a few words, like running or hard cycling. The US guidelines (second edition) say adults need at least 150 to 300 minutes of moderate activity a week plus muscle strengthening at least 2 days a week. Those are typical ranges, and the Gyroscope app personalizes yours.
In our calculator, a 50-year-old who does no exercise and starts moving 30 minutes a day gets back about 7 years. For strength, see does lifting weights help you live longer, and for the step count, you need 10,000 steps a day.
4 sources
- Arem H and others, Leisure time physical activity and mortality: a detailed pooled analysis of the dose-response relationship, JAMA Internal Medicine, 2015pubmed.ncbi.nlm.nih.gov
- Lee DH and others, Long-Term Leisure-Time Physical Activity Intensity and All-Cause and Cause-Specific Mortality: A Prospective Cohort of US Adults, Circulation, 2022pubmed.ncbi.nlm.nih.gov
- Li Y and others, Impact of Healthy Lifestyle Factors on Life Expectancies in the US Population, Circulation, 2018pmc.ncbi.nlm.nih.gov
- US Office of Disease Prevention and Health Promotion, Top 10 things to know about the second edition of the Physical Activity Guidelines for Americansodphp.health.gov
