Understanding Aging

The aging process

The passage of time is inevitable and eternal. Aging begins as early as from young adulthood (around age 20 to 40) to middle adulthood (around age 40 to 65), and continues to old age (beginning at the age of retirement, approximately at age 65). Aging occurs throughout most of lifespan. Such a process is an accumulation of changes, which may be subtle or even drastic, that progressively lead to disease, degeneration, and, ultimately, death. Truly, you cannot die merely of old age; your ultimate demise is caused by advancing age itself, as well as by the diseases and degenerative conditions that accompany it.

Aging is difficult to define, but you will know it when you see it or experience it yourself. In brief, aging is a steady decline in health, which is instrumental in shortening lifespan; and the aging process is the duration during which such changes occur.

The hard facts of aging

Whether you like it or not, your biological clock is ticking, and this will happen to various systems in your body:

Your heart will pump less blood, and your arteries will become stiffer and less flexible, resulting in high blood pressure—a health problem that often increases with age.

With less oxygen and nutrients from the heart, your lungs will become less efficient in distributing oxygen to different organs and membranes of your body.

Your brain size will gradually reduce by approximately 10 percent between the age of 30 and 70. Loss of short-term memory will become more acute.

Your bone mass will reduce, making it more brittle and fragile. Your body size will shrink as you lose your muscle mass.

Can the aging process be slowed down?

Absolutely! Although death has been pre-programmed into your biological organisms, you body cells, theoretically, may have an indefinite lifespan through division, rejuvenation, and regeneration—if they are still healthy and functional.

Although your genes mainly determine the speed of your biological clock, you can still slow down the speed of aging—if you still have good health.

So, what is good health? Is being healthy synonymous with absence of disease?

According to the United States Public Health Service, good health is “preventing premature death, and preventing disability, preserving a physical environment that supports human life, cultivating family and community support, enhancing each individual’s inherent abilities to respond and to act, and assuring that all Americans achieve and maintain a maximum level of functioning.” This statement probably sums up what you need to do in order to be younger and healthier for longer; it says everything about aging.

Stephen Lau

Copyright©2018 by Stephen Lau