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.
The Lunge That Shreds Every Muscle. Sculpt your entire body and force your core to work overtime with this exercise upgrade. Walking dumbbell lunges work all the muscles in your lower body. However, holding the weight above your bodyâlike you do in this grueling version of the moveâwill blast every muscle from head to toe.