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How Much Exercise Do I Need?
Reviewed by Medicinsk Expert•Last updated: 2026-10-22•Wellness Lifestyle

How Much Exercise Do I Need?

Regular physical activity is vital for health, and the recommended amount varies based on age, life stage, and individual health needs.

Guidelines for Adults

Adults should aim for the following weekly targets:

  • Aerobic activity: 150 to 300 minutes of moderate-intensity or 75 to 150 minutes of vigorous-intensity activity per week. You can also perform a combination of both.
  • Strength training: Perform strengthening activities two or more days per week, targeting all major muscle groups (legs, hips, back, chest, stomach, shoulders, and arms). Aim for 8 to 12 repetitions per exercise, eventually working up to 2 or 3 rounds.

Intensity definitions:

  • Moderate intensity: You can speak a few words in a row but cannot sing.
  • Vigorous intensity: You cannot say more than a few words without stopping for breath.

Guidelines for Children and Teens

  • Preschool-aged (3-5): Should be physically active throughout the day, engaging in both structured play (directed by an adult) and unstructured, creative free play.
  • Children and teens: Aim for 60 minutes or more of daily physical activity. Most should be moderate-intensity aerobic activity. At least three days a week, include vigorous-intensity aerobic activity, muscle-strengthening, and bone-strengthening activities (such as jumping, running, or pushups).

Special Considerations

Older adults, pregnant women, and individuals with disabilities or chronic health problems should consult their health care provider to determine the appropriate type and amount of activity for their specific situation. Older adults may particularly benefit from adding balance training to their routine to improve stability and prevent falls.

Exercise Tips

If you have been inactive, start slowly and increase your activity gradually. Even small increases in movement provide health benefits. Those attempting to lose weight may need more physical activity and should ensure they are burning more calories than they consume.

Frequently Asked Questions

Use a simple log or a fitness app to record each session’s duration and perceived effort. A moderate pace is one where you can talk but not sing; if you can say more than a few words without pausing, you’re likely in the moderate range. Aim for at least 30 minutes on most days, adding up to 150 minutes per week, or split the time into shorter bouts if that fits your schedule.
Schedule two 20‑minute sessions on non‑consecutive days. Choose compound movements (squats, push‑ups, rows) that work multiple muscle groups. Use body weight or resistance bands to keep the routine simple and portable, and perform 8‑12 reps per set, 2‑3 sets total.
Consult your provider first, but many people with conditions like hypertension or osteoarthritis can safely add vigorous activity in short bursts (e.g., 10‑15 minutes) as long as they monitor symptoms and avoid overexertion. Gradual progression and regular check‑ins help keep the activity safe.
Excessive shortness of breath, chest pain, dizziness, or a sudden drop in performance are red flags. If you feel unusually fatigued or notice swelling in joints, stop and rest. Regularly reassess your intensity by checking how many words you can speak without pausing; if you’re struggling to speak at all, you’re likely exceeding moderate effort.===
Source: MedlinePlus, National Library of Medicine

MedlinePlus brings together authoritative health information from the National Library of Medicine (NLM), the National Institutes of Health (NIH), and other government agencies and health-related organizations.

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