They should also do muscle-strengthening activities on 2 or more days a week. Adults should do at least 150 minutes to 300 minutes a week of moderate-intensity, or 75 minutes to 150 minutes a week of vigorous-intensity aerobic physical activity, or an equivalent combination of moderate- and vigorous-intensity aerobic activity. Children and adolescents aged 6 through 17 years should do 60 minutes or more of moderate-to-vigorous physical activity daily. Preschool-aged children (3 through 5 years) should be physically active throughout the day to enhance growth and development. Recommendations The PAG provides information and guidance on the types and amounts of physical activity to improve a variety of health outcomes for multiple population groups.

The Department of Health and Human Services (HHS) based the PAG on the 2018 Physical Activity Guidelines Advisory Committee Scientific Report. Evidence graded as strong or moderate was the basis of the key guidelines. The committee addressed 38 questions and 104 subquestions and graded the evidence based on consistency and quality of the research. Process and Evidence Synthesis The 2018 Physical Activity Guidelines Advisory Committee conducted a systematic review of the science supporting physical activity and health.

Objective To summarize key guidelines in the Physical Activity Guidelines for Americans, 2nd edition (PAG). Physical activity fosters normal growth and development and can make people feel, function, and sleep better and reduce risk of many chronic diseases. Importance Approximately 80% of US adults and adolescents are insufficiently active.

Physical activity guidelines