To every thing there is a season.
Truth is life is a series of events which bear somesemblance to life cyle.
After rapid teenage growth, body systems begin to slowly decline, especially muscular and immune. Your metabolism slows, along with digestion, endocrine function and glucose tolerance. So it's easy to gain weight. Good news is you may beat the odds. Life expectancy has increased three-fold since 1700 to 72.1 years for men and 79.0 years for women.