What are the general weekly physical activity guidelines for adults?

• A. 60 minutes of cardio daily with no strength training.
• B. 30 minutes twice a week, no strength training.
• C. At least 150 minutes of moderate-intensity or 75 minutes of vigorous-intensity aerobic activity per week, plus muscle-strengthening activities on two or more days.
• D. 75 minutes of moderate activity per week with no minimum strength work.

Answer: (C)

Mixing aerobic activity with muscle-strengthening work is what's emphasized. Adults should aim for at least 150 minutes of moderate-intensity or 75 minutes of vigorous-intensity aerobic activity each week, plus muscle-strengthening activities on two or more days. You can break the aerobic time into multiple sessions across the week, and strength work should involve major muscle groups on multiple days. This combination supports heart health, weight management, and overall muscular and bone strength. The other options fall short because they either omit the required strength training, or provide too little aerobic activity, or both.