Exercise is the most powerful supplement to slow down the aging process from the inside out. Exercise can slow, and even reverse, the most common signs of aging, such as muscle and bone loss, increased body fat, memory and cognitive decline, sluggish metabolism, heart and endocrine health issues, decreased libido, impaired immune system, and even depression.
If you want proof of what exercise can do to delay the aging process, a study of more than 2,400 British twins showed that exercising preserves telomeres, the protective caps of the chromosomes that carry genes. Every time a cell divides, telomeres get shorter. When the telomeres are too short, the cell cannot divide anymore and dies, which causes aging to occur. However, those who exercised 100 minutes a week had telomeres that looked about five to six years younger than those who performed about 16 minutes or less of weekly exercise.