BIOMOLECULES AND ENZYMES

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: -Why Does Metabolism Slow Down as You Age? Loss of muscle mass. As you age, you naturally lose muscle mass. As a result, you burn calories at a lower rate.

Detailed explanation-3: -Metabolic rate remains stable all through adult life, from age 20 to 60 years old.

Detailed explanation-4: -Your metabolic rate peaks in your early 20s, according to Women’s Health Magazine. At this age, you tend to have a higher muscle mass and have a fair amount of physical activity built into your day. As early as age 30, however, men and women begin noticing a dip in their ability to lose weight.