For substantial health benefits, adults should do at least 150 minutes (2 hours and 30 minutes) a week of moderate-intensity, or 75 minutes (1 hour and 15 minutes) a week of vigorous-intensity aerobic physical activity, or an equivalent combination of moderate- and vigorous-intensity aerobic activity.
Decrease the intenseness of the stepper machine so his heart rate doesn't go over his target heart rate zone.
Answer:
Im pretty sure its fertilization
Explanation:
