My friends aren't online and I have nothing to do pl ;-;

To avoid whiplash, the center of the headrest must be your ears.

Scientists who study the anatomy of the systems in the human body focus their studies on

Describe specific ways your friend can use frequency, intensity, time, and type to safely apply the overload principles to his workout schedule. provide two ways per training principle. sunday30-minute bike ride monday20 push-ups, 10 squats, and 20-minute jog tuesday30-minute bike ride wednesdayrest thursday20 push-ups, 10 squats, 25 curl-ups, and 20-minute jog friday30-minute bike ride saturdayone-hour walk