People whose childhood was marred by a serious stress, in adulthood, are sometimes literally “older than their years.” As found by a group of canadian scientists from the University of British Columbia in Vancouver, a difficult childhood leads to a reduction in the size of telomeres — the end parts of chromosomes that protect the crate from damage. About the connection of telomeres with aging professionals has been known for a relatively long time.
The study involved 4 598 men and women older than 50 years. Experts asked volunteers how difficult their childhood was, and then checked the length of the telomeres in their cells. As it turned out, if people are faced with lots of problems, it often affects their body, at least 11 percent increasing the likelihood that the telomeres of a person in the future will be shorter than normal for their age increased. The specialists say that the financial problems that most adults would be perceived as a significant stress, they do not affect the future length of the telomeres. However, a negative effect was rendered by such problems as the parents addiction to alcohol or drugs, reaching up to battering the conflict in the family and in schools, teenage crime, and so on.
In the future, experts plan to podtverjdenie their findings to conduct a larger study incorporating more data on various people. The results obtained to the present time, scientists reported in the journal Proceedings of the National Academy of Sciences.
Telomere length shortens with each cell division, and ultimately becomes so small, that to share a cage any longer. The study of these processes in 2009, scientists Elizabeth Blackburn, Carol Grader and Jack Shostak was awarded the Nobel prize in physiology and medicine. Since then, the use of telomeres as a “landmark” allowed the various professionals to conduct a variety of studies of aging — for example, according to one of the smart people stay young longer, and another, impatient, on the contrary, age faster. And in June this year, a group of researchers from Spain managed to prolong youthfulness of laboratory mice, they artificially lengthening the telomeres.