It seems that nobody knows precisely what causes aging. Scientists have studied doable causes, leading to various theories, one in every of which is that genetics do have a sure position to play in the aging process. This position shouldn't be the only one, and should not even be a significant role, nevertheless it is a part of the process of ageing and is due to this fact of interest. Once it's known what causes growing older, then certain steps might be taken to push the boundaries, but which steps are taken depend on which idea is considered to be most likely proper.
That genetics play a job in growing old is greater than a theory, since studies and experiments in altering the genes of sure mice have brought about them to age much sooner than others. What shouldn't be known is the proportion that genetics plays in the aging course of in comparison with other factors. Some recommend that it only contributes 30% to ageing, whereas other causes reminiscent of surroundings and hazard elements are the bigger percentage.
Mutating sure genes in worms had caused an increase in their lifespan that will translate to about 300 years in humans. It is usually known that in Werner?s syndrome, a mutated gene - considered concerned in DNA upkeep - causes extreme and fast growing old in humans. This would appear to level in direction of the fact that genetics does play a task of some variety in ageing.
If those genes which can be involved within the growing older process are also concerned in controlling the injury caused by growing older, then such data would support one other principle, which is that our lifespan is determined by how a lot damage is finished to our DNA by varied body capabilities like metabolism.
Scientists have discovered that ingesting fewer calories will increase an animal?s lifespan. They assume that consuming much less means there may be need for much less metabolism and thus much less DNA and cellular harm is brought on. Most of us have seen those previous people who find themselves extremely skinny, but appear to have nearly as a lot energy in their previous age as they had in their youth.
While scientists spend billions of dollars looking for out the causes of getting older, we mere mortals simply flip to the Bible and discover that the Lord mentioned, ?My Spirit shall not attempt with man ceaselessly.? Then he decreased our lifespan from four hundred/500 years all the way down to one hundred twenty. (Gen.6:3). So whatever ?causes? aging, the prime purpose is that it has been decreed by our Creator.