1/20/2024 0 Comments Life span![]() Best Life Insurance For College Students?.Best Life Insurance Companies In America.Best No Exam Life Insurance Rates By State.Best Term Life Insurance Rates By State.How Much Is $1 Million In Life Insurance?.How Much Is $500,000 In Life Insurance?.How Much Is $100,000 In Life Insurance?.Can You Get Life Insurance Quotes With No Personal Info?.What Are The Different Types Of Life Insurance?.What’s The Average Life Insurance Cost Per Month?.* This article was updated on 24 March 2023 to clarify that while both X chromosomes in women can carry the same version of a gene, they can also carry different alleles.įollow us on Facebook, Twitter, Google+, LinkedIn and Instagram. But the hope is that eventually, the knowledge may provide some hints to help us all live a little longer.ĭavid Robson is BBC Future’s feature writer. “We really have to retain an open mind as to how much the difference can be explained by hormonal differences and other factors,” says Kirkwood. As it is, the scientists admit that we need to keep on looking for a definitive answer. The bottom line is that it matters more for the children that the mother’s body should be in good shape, rather than the father’s.” “The welfare of offspring is intimately connected with welfare of the maternal body. But once the children are born, the men are more disposable, says Kirkwood. During mating, women would be more likely to go for alpha males, pumped up on testosterone. Kirkwood and Gem both think of this as a kind of evolutionary pay-off that gave both men and women the best chances of passing on their genes. Since men tend to be taller than women, they should therefore face more long-term damage. Taller people have more cells in their bodies, meaning they are more likely to develop harmful mutations bigger bodies also burn more energy, which could add to wear and tear within the tissues themselves. Or it could also be a simple matter of size. The result is delayed risk of cardiovascular disease later in life. The result is that more cells may begin to malfunction with time, putting men at greater risk of disease.Īmong the other alternatives is the “ jogging female heart” hypothesis – the idea that a woman’s heart rate increases during the second half of the menstrual cycle, offering the same benefits as moderate exercise. It means they have a greater chance of having healthy genes on one of their X chromosomes. Having two X chromosomes, women can have double copies of every gene (although not always as each chromosome can have a different version of a gene). That difference may subtly alter the way that cells age. “Of course, social and lifestyle factors do have a bearing, but there does appear to be something deeper engrained in our biology,” says Tom Kirkwood, who studies the biological basis for ageing at Newcastle University in the UK. Instead, it would seem like the answer lies in our evolution. But the fact is that female chimpanzees, gorillas, orangutans, and gibbons also consistently outlive the males of the group, and you do not see apes – male or female – with cigarettes hanging out of their mouths and beer glasses in their hands. Russian men are likely to die 13 years earlier than Russian women, for instance, partly because they drink and smoke more heavily. ![]() Factors such as smoking, drinking, and overeating may partly explain why size of the gender gap varies so widely between countries. Nor has it been easy to prove that men are more abusive of their bodies. There may be no more robust pattern in human biology.” As one recent article put it: “This remarkably consistent survival advantage of women compared with men in early life, in late life, and in total life is seen in every country in every year for which reliable birth and death records exist. ![]() In both cases, women live about 5% longer than men. In 1800, life expectancy at birth was 33 years for women and 31 years for men today it is 83.5 years and 79.5 years, respectively. Consider Sweden, which offers the most reliable historic records. In fact, the difference in lifespan has remained stable even throughout monumental shifts in society. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |