Red blood cells pick up oxygen in the lungs. Blood travels away from the heart and lungs through the arteries. Red blood cells drop off oxygen to the cells through tiny tubes called capillaries. Blood then returns to the heart through the veins and the cycle begins again.
Beth is aging as well and is possibly developing health issues.
He has appointed a second proxy because Beth could possibly pass away or become to sick to be there for Jackson.
False, the amount of sleep your body gets will very much so effect your day. Sleep allows the brain and body to rest and grow, we need sleep to perform tasks throughout the day.