"How & Why We Age" Most people just shrug and accept aging as - TopicsExpress



          

"How & Why We Age" Most people just shrug and accept aging as something that can’t be avoided – like death and taxes. Perhaps we haven’t figured out how to cheat death yet, but recent scientific discoveries have shown that common conceptions of aging are largely mistaken. For most species on the planet (as well as humans until only very recently), it was unlikely for anyone to survive long enough to die of simple “old age.” Events such as starvation, accident, being eaten by a predator, disease, and other causes were the usual reason for death. There are number of theories about exactly why and how we age. You may have heard of free radicals – a free radical is a special type of molecule with an extra electron that steals electrons from other molecules as it passes through your bloodstream, causing damage to your body’s cells. The exact role of free radicals is still uncertain, and much research is still being done, but studies have established that the presence of free radicals plays a part in diseases such as Alzheimer’s disease, arthritis, hypertension, and other health problems. Studies have also shown a definite relationship between a strong and healthy response to stress and aging. Free radicals can cause progressive damage to the body’s tissue and functioning, and thereby increase the rate of aging. A good stress fights off the free radicals, which in turn slows down the aging process and increases your lifespan. There are a number of substances that function as anti-oxidants that work to bind the unstable free radicals and render them harmless. Many of these substances will be discussed further on in this book, but they include Vitamin C, Vitamin E, beta-carotene, grape seed extract, Melatonin, and other substances. It’s only in modern times, when increasing numbers of people live long enough to die from so-called “natural causes,” that the role of phenomena such as free radicals has become important enough to study. Another theory of aging focuses on how our DNA works. DNA is the blueprint of our individual body and life, and is inherited from our parents. The theory here is that our individual code ages us at a predetermined rate, possibly to keep humans from overpopulating by making sure we don’t stick around too long taking up room. But this code can also be altered or “fooled” into aging much more slowly, through improving our diet and lifestyle and avoiding pollution and other environmental toxins as much as possible.
Posted on: Mon, 09 Sep 2013 05:17:11 +0000

Trending Topics



Recently Viewed Topics




© 2015