Final answer:
As little as 30 minutes of sustained physical activity most days can notably improve health and quality of life. The HHS recommends at least 150 minutes of moderate or 75 minutes of vigorous aerobic physical activity weekly. Incremental engagement starting with 10 to 15 minutes daily is encouraged.
Step-by-step explanation:
Research has indicated that for improving health and quality of life, as little as 30 minutes of sustained physical activity on most days can bring about significant benefits. This level of activity can lead to a reduction in the risk of heart attack by nearly 50%.
The U.S. Department of Health and Human Services (HHS) advises adults to engage in at least 150 minutes of moderate-intensity or 75 minutes of vigorous-intensity aerobic physical activity each week. Moderate activities allow a person to talk but not sing, while vigorous activities make speaking more than a few words without pausing to breathe difficult.
Incremental engagement in physical activity is encouraged, starting with 10 to 15 minutes of activity per day and working up to the recommended levels. Even those who cannot meet these guidelines still gain health benefits, making any amount of activity better than none at all.