The average life of a human red blood cell (erythrocyte) is 120 days. In humans, erythrocytes (red blood cells or RBCs) are functional on average 120 days.8 people found this useful. normal healthy white blood cell lives for approximately 12 hours. Whereas a healthy red blood cell lives for about 90 days. Although blood is produced from healthy bone marr â¦ ow and constantly producing new red and white blood cells.
The main muscle targeted by the dumbbell shoulder press is the anterior deltoid, or the front shoulder. To a slightly lesser degree, the exercise also hits the remaining deltoid muscles, including the lateral deltoid, or the outside of your shoulder, and posterior deltoid, or the back of your shoulder.
Position the dumbbells over your upper chest with your arms extended and rotate your shoulders so your elbows are pointing towards away from your sides. Bring the dumbbells down to the sides of your upper chest by horizontally abducting your shoulders by bending your elbows. When the dumbbells are near your upper chest, bring them up to the start by horizontally adducting your shoulders and by extending your elbows. Incline Cable Fly. The advantage of using cables while doing incline flys is the ability to maintain constant tension on your pectoralis major muscles.