HUMAN NUTRITION

Detailed explanation-1: -As we age, our metabolism slows and the rate at which we break down food decreases by 10 percent each decade after age 20. Metabolism is the amount of energy (calories) your body uses to maintain itself.

Detailed explanation-2: -As you age, your metabolism tends to decelerate by about 5% for every decade of life past age 40, so that if your resting metabolic rate is, say, 1, 200 calories per day at age 40, it will be around 1, 140 at age 50.

Detailed explanation-3: -Chronic diseases: Certain medical conditions such as obesity, hypothyroidism, diabetes or Cushing’s syndrome can slow down metabolism. Obesity: Obese individuals with higher fat mass and lower muscle mass tend to have a slower metabolism.