The authors of the study, Intern Health Study were scientists from the University of Michigan. The study involved 250 students in internship.
In the course of work the specialists measured the length of telomeres, which protect DNA from damage during cell division, before and after training.
As you know, telomeres are a kind of indicator of the life cycle, and the end of life their length becomes much smaller.
However, scientists have found that during hard studying their reduction is six times faster. This negative effect depends on the duration of employment.
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