1.To understand our bone mass is very important because the bone mass decrease (osteoporosis), the risk of bone break increase. 2.Water is essential for blood circulation and works as lubricant in joints and internal organs. When body is deficient in water, it accelerates aging. 3.Lack exercise and irregular life-style results in excess weight that makes heart and other organs work harder. 4.Muscle condition reflects overall body status. Good exercise and health life-style promise long and productive life. 5.Calorie in food is the fuel for our body. Active body uses more calories per day. Our metabolism determines the rate of which our body burns calories.