Final answer:
The CDC and ACSM recommend that every US adult should accumulate at least 150 minutes of moderate intensity physical activity weekly for significant health benefits.
Step-by-step explanation:
According to the 2018 Physical Activity Guidelines for Americans, issued by the Department of Health and Human Services (HHS), it is recommended that every US adult should accumulate at least 150 minutes (2 hours and 30 minutes) to 300 minutes (5 hours) of moderate intensity physical activity each week. This recommendation is based on evidence linking increased physical activity with a lower risk of diseases such as heart disease, stroke, high blood pressure, type 2 diabetes, several cancers, and depression. The guidelines further recommend that adults should engage in muscle-strengthening activities of at least moderate intensity involving all major muscle groups on 2 or more days per week for additional health benefits.