Are There Exceptions?
The short answer is – yes. Just like everything else in life, there are always exceptions.
Dr. Ying-Hui Fu, a neurology professor at UCSF, says that there are people who thrive on only four hours of sleep every night.
However, there’s a specific and unique reason for being able to thrive on such a small amount of sleep. In 2009, Dr. Fu’s lab discovered a gene that makes some people more efficient sleepers, requiring just 4-6 hours of sleep nightly. She says that it is rare and stresses the importance of adequate sleep.