According to Yahoo! Health news report, a gene variant is associated with sleeping less than average.

Those with the gene spend a larger proportion of time in deep sleep, which is critical for rest and recovery, than those without it, explains lead study author Renata Pellegrino, a scientist at the Children’s Hospital of Philadelphia. This genetic makeup is believed to exist in less than 1 percent of the population, but it may eventually be possible to develop drugs that mimic its effect.

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