Scientists have proven that children who experience constant stress, telomere length is significantly reduced. This structure is involved in the aging process and determines the biological age of a person, writes PNAS (Proceedings of the National Academy of Sciences).
Indicators of telomere length in children under stress, reduced, when compared with children from more advantaged children. Scientists from the University of Pennsylvania received data in the course of the experience. Was investigated the structure of the genetic material 40 children: 20 samples were from children who were brought up in harsh conditions, and the remaining 20 in stable families with normal climate.
It was found that telomere length at constant stress is reduced by 40%. Experts have established in this pathological process involved the synthesis of the hormones dopamine and serotonin, which is not enough.
Today is too early to make definitive conclusions about the relationship between stress and telomere length, requires a more detailed study involving a larger number of children. Plans to conduct a large-scale project in this area.