Less than 3 percent of the population is able to function well on 4 hours of sleep. They are called "short sleepers." As Marisol Castro reports, famous "short sleepers" in history include Leonardo DeVinci and Martha Stewart.
Read More »Less than 3 percent of the population is able to function well on 4 hours of sleep. They are called "short sleepers." As Marisol Castro reports, famous "short sleepers" in history include Leonardo DeVinci and Martha Stewart.
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