Miracle Drugs, Old Age Myths, and the Truth about Life Expectancy
David W. Stephen, Ph.D.
You’ve heard the claims: “Miracle Product Reverses the Aging Process! New Phyto-Supplement Takes Years Off Your Life!” If you believe it, can afford it, and it makes you feel better, then buy it and use it. Hope springs eternal in the human breast. Lord knows, I take a handful of vitamins every morning, myself. But if you’re skeptical about miracle products that promote the myth of “forever young,” here are some facts about life span and life expectancy.
How long can a person really live? Answer: 115 years. The human life span is not increasing; it has been fixed at about a maximum of 115 years for at least 100,000 years. This is called the Maximum Life Potential (MLP). This is like the Olympic Gold Medal for aging. Very few people actually manage to live that long, just as very few people can tie the world’s record for running a mile. There are reports of people living longer, but these are a matter of faith or questionable documentation.
What is my life span? Answer: 85 years. The average age at death, or life span, is 85 years for the human race and has remained constant for centuries. Life span is a theoretical average age at death for the human race, taken as one large group. If there were no disease, no accidents, no birth defects, and if you (and everyone else) lived a perfectly healthful life in every way, average age at death would be 85 years. Average implies that people die at differing ages. A few would reach the MLP of 115. A few others would only make it to 55 or less. But remember, we do need to consider disease, accidents and other causes of death to get a more accurate picture. That picture is called “life expectancy.”
What is my life expectancy? Answer: 80 years for females, 74 for males (in the USA). It’s not 85 years (the statistical human life span) because we have to factor in disease, accidents, etc. The good news is that YOUR LIFE EXPECTANCY IS INCREASING! This is primarily due to three things, a statistical effect, better health care, and healthier lifestyles.
First, the statistical trick is that infant mortality is lower today than it was in 1900. If fewer Americans die as infants it automatically pushes the average age at death up, just as if fewer students score “F’s” on exams, then the class average improves.
Second, with improved health care, we now prevent deaths from diseases like smallpox and polio. Medical treatment has improved so that more people also recover from accidents and illnesses that were previously fatal. Doctors can now diagnose illnesses and disorders earlier and that can increase your life expectancy.
What can I do to live longer? The third contributing factor to increased life expectancy is in your control. Living a healthful life in childhood and middle age contributes to being healthy and vital in your golden years. Diseases such as emphysema and heart disease can often be prevented by a healthful lifestyle. Long term moderation in smoking, drinking, and maintaining sensible eating habits can keep you looking and feeling young and vital.
Vitality in your senior years is what you really want. You can’t avoid growing old, but you can avoid growing old, feeble and dependent. Here’s the great news! We are seeing a decrease in the number of senior years during which we are dependent and feeble. Given this news, in a perfect world here’s how the aging process would proceed. You live a healthful life for 75-85 years. You get old but you remain full of vitality and do not need much assistance. Then, one morning you awake feeling fine and take a long walk, by noon you are in a wheelchair, by dinner you need help eating, and before the ten o’clock news you’ve passed on to join your ancestors and your Maker. At least that’s how I want my last day to go.
So the best bet is to pray that you avoid accidents and illnesses, get medical attention sooner rather than later, be moderate, and actively pursue healthful habits throughout your life. Your goal is to remain vital so you can stay at home as long as possible.
But don’t expect to get as old as Methuselah, even if you buy miracle products or take as many vitamins as I do.
Shangri-la and Old Age Myths
Shangri-la myths come from the Greek legend of the Hyperboreans who lived to be 1,000 years old in a land of sunshine and perfect health. Eventually they became bored with life and leapt into the sea. Some such secluded places may exist, but if people live longer there, it is most likely that they eat moderately and healthfully, do hard farm work even in old age, and are valued by other clan members. Maximum Life Potential age (MLP) remains at 115 years.
In the Book of Genesis, Adam and six of his direct descendants are reputed to have lived over 900 years. Methuselah, was the oldest at 969. The truth of this is a matter of faith. In recent history, no claims of such longevity can be documented. Age exaggerations may be due to having a grandfather, father and son all with the same name, resulting in unreliable records. Some remote societies revere elders and exaggerate age to elevate status. Lunar calendars and the Moslem 10-month calendar contribute to fuzzy math. Given a 10 month calendar, a 115 year old (MLP age) would be counted as 138.
According the Guinness Book of World Records, the verifiable winner of the Oldest Person award is Shigechiyo Izumi of Japan, at 114 years of age, one year shy of the MLP.