Some people need less sleep
Past research found that carriers of a particular gene slept for about 2 hours less than non-carriers. They also found short sleepers who did not carry this gene but had another mutation that appeared to be linked with short sleep.
Natural short sleepers don't seem to suffer health problems associated with getting too little sleep. But it could be that short sleepers are really efficient sleepers.
Today, what could be more important than your health? Seriously.
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