The short answer
The CDC says adults should aim for at least 150 minutes of moderate activity a week, plus muscle-strengthening on 2 days. The American Cancer Society suggests 150 to 300 minutes. But any movement helps, and if you are inactive, the best plan is to start with 5 minutes and build up slowly.
The CDC suggests at least 150 minutes of moderate activity per week. The American Cancer Society suggests 150 to 300 minutes.
The CDC also recommends muscle-strengthening activities on 2 or more days a week.
Moderate activity means you can talk but not sing — like a brisk walk.
Everyday movement counts: walking, gardening, cleaning, and stretching all add up.
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The simple version
You may have heard the '150 minutes a week' number. It's a helpful goal. But the most important thing to know is that any movement helps, and you can build up to it slowly. Something is always better than nothing.
The general goal for adults
The CDC and the American Cancer Society suggest adults aim for:
- At least 150 minutes of moderate activity a week, such as brisk walking (CDC). The American Cancer Society suggests 150 to 300 minutes, and calls 300 or more ideal.
- Or 75 minutes of vigorous activity, such as jogging (ACS: 75 to 150 minutes).
- Plus muscle-strengthening activities on 2 or more days a week.
- Less sitting. The CDC says adults who sit less and move at any level gain some benefit.
What counts
Lots of everyday things count as activity. Brisk walking, gardening, yard work, housework, dancing, cycling, swimming, and stretching all count. Spreading movement across the week is easier than doing it all at once.
You do not need a gym. Everyday movement counts.
If you are inactive: start with 5 minutes
If you haven't been active, the weekly numbers can wait. You could begin with 5 minutes of easy walking or gentle movement, then repeat it the next day. They add a minute or two when it feels comfortable. Building the habit matters more than the total.
Small steps count — start with 5 minutes and build from there.
A note before you start
This information is educational. It is not a substitute for medical advice. If you have cancer or a medical condition, ask your care team what activities are safe for you, and how fast to build up.
When to get help sooner
Movement is safe for most people. Still, stop and rest if your body sends a clear warning sign, then get checked.
- Call 911 or go to an emergency department if you get chest pain, chest pressure, or pain spreading to your arm or jaw while active; if you faint or pass out; or if you cannot catch your breath even at rest. Do not drive yourself.
- Call your care team the same day if you feel dizzy or lightheaded when you move, your heart races or pounds without a clear reason, or your legs swell suddenly.
- Call your care team within a day or two if normal walking leaves you far more short of breath or worn out than it used to, or if a joint, muscle, or bone hurts more each time you move it.
Sources
Common questions
How much activity is recommended?
The CDC says adults should aim for at least 150 minutes of moderate-intensity activity each week, or 75 minutes of vigorous activity, plus muscle-strengthening activities on 2 or more days. The American Cancer Society suggests 150 to 300 minutes of moderate or 75 to 150 minutes of vigorous activity, and calls 300 minutes or more ideal.
What does 'moderate' activity feel like?
During moderate activity you can talk but not sing. A brisk walk is a good example. Vigorous activity, like jogging, is harder than that.
Does everyday movement count?
Yes. Walking, gardening, housework, dancing, and stretching all count toward being active. You do not need special equipment or a gym.
What if I can't do that much?
That's okay — some activity is far better than none, and the CDC says any amount of activity brings some health benefit. If you are inactive, you could begin with just 5 minutes and slowly add more over time.
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Last updated: 2026-10-02Next planned review: 2028-07-07
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Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes, and this is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status: Source checked — This page was written with AI assistance and then compared with the sources listed on it, looking for statements those sources do not back up. That check is not a sentence-by-sentence record and can miss errors. It is not a medical review, and it does not confirm the page is complete or right for your situation.
Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.
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