2. Which of the following is least descriptive of the myocardium? a. Composed of contractile proteins (actin and myosin) b. Thicker in the ventricles than the atria c. Thicker in the left ventricle than the right ventricle d. Oxygenated by oxygen that diffuses across the ventricular walls​

Because without physical activity, the body has extra "energy" if you will, and so when it is time for bed you are not tired, so you end up staying up all night. also there is probably an effect on your internal clock, which messes with your melatonin production which goes hand in hand with your sleep cycle

Answer bursitis;

Answer target heart rate;