Night owls and early risers by chance

Anonim

Night owls and early risers by chance
Why are some of us early risers and other night owls? The answer lies, as always, in our genes.

A matter of genes. If you can't stay awake in the morning, blame your DNA.
A matter of genes. If you can't stay awake in the morning, blame your DNA.

Why are some of us early risers and other night owls? The answer lies, as always, in our genes. A team of researchers from the University of Surrey revealed that they had found a link between the predisposition to live the dawn or the night and the gene known as "Period 3" (Per3), involved in the regulation of sleep-wake rhythms body. What would make us early birds or night owls would be specifically the length of the gene: the more the Per3 is short, the more the carrier is a night owl; vice versa, the longer the gene is, the sooner we wake up.
Lazy and possible. The team of scientists confirmed this finding by testing 500 volunteers by analyzing DNA from samples of their cheeks. "For the first time we found the link between a single gene and a behavior as complex as that of the day-night rhythm. Certainly we realize the influence exerted also by the lifestyle of each, which is the result of a personal choice, "said Dr. Simon Archer, who leads the research. The advantages of this discovery are certainly of a practical type: for example, finally it can be recognized that a certain predisposition to be "lark" or "civette" cannot be changed and that therefore it is better to choose a job and a partner that corresponds to our rhythms. And what's more, we can find a ready excuse for our laziness: so much is "the fault of a genetic defect" …
(News updated June 28, 2003)