why is it not possible for human beings to stop their age?

Answer 1

IN the study of human aging
There are many complex genetic, cellular and extracellular issues that are not well understood and currently scientists have no solutions for at this time:

Seven deadly sins of Aging in Humans:

1. Cell loss, cell atrophy
2. Nuclear [epi]mutations (only cancer matters) WILT (Whole-body Interdiction of Lengthening of Telomeres)
3. Mutant mitochondria Allotopic expression of 13 proteins
4. Death-resistant cells -Cell ablation, reprogramming
5. Extracellular crosslinks -AGE-breaking molecules/enzymes
6. Extracellular junk -Phagocytosis; beta-breakers
7. Intracellular junk -Transgenic microbial hydrolases

Answer 2

Humans cannot stop the aging process due to the fact that we need to develop in order to survive. For example, if we did not age, we could never reproduce. The older you get, the more capable your body becomes for reproduction. This is to a point of course, but keep in mind that people are living way longer now than they were 1000 years ago. At one time, people were dying after their body was no longer capable of reproduction. I also agree with one of the other answers that our body is a machine that wears down over time, and cannot be maintained well enough to stay working at it's full potential forever.
Besides, if there was a way to stop the aging process, the world would become so over populated that we would not have the resources to sustain everyone. Poverty and world hunger would be an even bigger epidemic causing a higher death rate because of starvation rather than natural death.

Answer 3

In point of fact, we don't know whether it's not possible, because we don't know enough biology to have a full understanding how aging works, much less how to control it. In any event, it's worth considering that aging is, if you take a moment to think about it, a really new problem for humanity.

You ever have a really old car that's breaking down, you have to feed it lots of oil, but you just don't want to buy a new one? Or how about an old shirt or pair of shoes that you've had forever, maybe it's even got some holes in it, and you just don't want to give it up? Well, in a real sense that's the human body: something which keeps on getting used for a lot longer than it was originally intended.

There was a time when being thirty years old was considered a ripe old age. That was thousands of year ago, but in terms of evolution and biological development that's very, very recent. People never got old enough to have arthritis or menopause or Alzheimer's disease, because a poison berry or a sabertooth tiger or a disease killed them first.

More importantly, evolutionarily speaking, everything that happens after your child bearing years is irrelevant. The principle of natural selection applies when physical attributes affect your ability to pass on your genes to the next generation. For a fanciful and perverse example consider the following: Let's say that a mutation appeared in the population which at the same time made you thinner and more attractive, but made you one hundred percent likely to get Alzheimer's disease in your sixties. It's not hard to imagine that after a couple dozen generation there'd be a lot of gorgeous people around who have a great time in their young adult years and end up forgetting where their house keys are several decades later. Admittedly, the example is slightly facetious, but hopefully it illustrates the concept.

Overall, my point about bringing up evolution is that what we know about the natural forces influencing biology don't select for creatures to survive forever, but only select for creatures to survive until they bear offspring. Ever longer life is basically an expectation that we as a race have brought to the table very recently in the overall lifetime of our species.

Having said all that, what we do know about the aging process biologically covers a lot of ground and is hard to adequately cover it in such limited space. Several starting points are to look up information on gerontology if you're interested in a broad and general coverage of the subject. Another place to look which I personally find interesting is to read up on the research of Aubrey de Grey. Although he is a controversial figure on account of some of his views, he's clearly an accomplished biologist who has done scientifically credible work. He's only one of many individuals in the field, he just happens to be one that I've heard about.

At the risk of oversimplifying the matter, de Grey's view is more or less that aging is basically an engineering problem, and the overall objective of his research is to approach aging as a process of a machine breaking down and simply repair the damage. If it is possible to stop aging, then looking at what de Grey is attacking is probably about as informed an opinion as one might expect to find as to what it takes to actually stop it. Of course, his is only one of many researchers in this field, so I heartily encourage you to read more broadly in gerontology and learn what others are doing and their points of view.

Answer 4

Nice question. Every physical aspect of this cosmos has a certain life span from macroscopic (stars, planets) to microscopic (bacteria etc). With advancement of science, medicine, nanotechnology and so on, we could expect increase in longivity of people, but its very unlikely that age could be stopped for ever. I mean....i shouldnt be coming to conclusions since we wouldnt know what's in store for us in 3000 or 5000 years from now. But with the knowledge we have to day and with speculation, we could say...age is something that we can prolong giving more logivity to humans but keeping them alive forever is little too far to comprehend.

Answer 5

You do stop aging-the moment you die! Then it is simply decomposing. We age because similar to a machine, our bodies must produce millions of new cells a day, and the machine wears out: gradually producing fewer new cells, poor replacements, etc.

Answer 6

it is possible. there is an enzyme we lack called telemorase, which add telomers to the ends of our dna strands. If we can find how to add this enzyme into our bodies, then our genes will not degrade naturally, and we will forever be youthful.

Answer 7

you need not need a rational answer for this question at all.......the obvious is no one is able to stop time.your age increases year by year unless you die of course.