Scientists explained why humans live longer than animals
The average life span of humans is 70-80 years, but animals like rats, dogs, cats, etc. die within a few years. There is such a difference in the body of animals and humans that some organisms age and die, while on many organisms the effect of age is seen gradually. Now scientists claim that they have found the answer to this question. To solve this mystery, scientists have done research on mammals. British scientists have said that the secret of their age is hidden in the DNA of living beings. The faster the DNA changes, the less likely the organism is to survive.
According to a media report, scientists from the Wellcome Sanger Institute of Britain have done this research. They studied the DNA of 16 mammals including humans, dogs, horses, giraffes, lions, rabbits, rats and cats and came up with the results. During this research, scientists have discovered that the mutations in DNA are almost identical. In all these organisms, DNA mutations occur approximately 3200 times in a lifetime. Scientists say that organisms that mutate more quickly die.
In the study, scientists found that the mice’s DNA changes an average of 800 times a year, living for less than four years. Similarly, DNA changes occur about 249 times in dogs, 160 times in lions, 99 times in giraffes and about 47 times in humans. Accordingly, there is a difference in their average age. Dr. Alex Cagg, a scientist on the research team, told a media outlet that if the rate of mutation in the DNA of mice had changed at the rate of human DNA, there would have been more than 50,000 DNA mutations. This happens many times in a person’s whole life, but it does not happen. In humans, DNA changes only 47 times in a lifetime. Doctor. Cagg said that despite the different ages, the mutations in the DNA in mammals are similar. But at this time it is not known what he will do after leaving the post. Scientists will now study fish like the Greenland shark, which has lived for more than 400 years. The Greenland shark is considered the largest living vertebrate in the world.
Through this research, scientists want to know the secret of age. One of the reasons for this is also finding a cure for cancer. It is believed that organisms with more cells live longer and are more likely to develop cancer. “I don’t think that’s true, because whales have a lot more cells than humans, but humans have more cancers,” Dr. Kegan says. The secret of this mystery may lie in the transformation. The slower the conversion rate, the lower the risk of cancer.
