However, sleep specialists also found that “those sleeping four to 5 1 / 2 hours did poorly on tests that measure memory, clear thinking and the ability to pay attention. ”
Unespetsialistid on aga ka leidnud, et „neil, kes magavad neli kuni viis ja pool tundi, näitavad testid mälu nõrgenemist, mõtlemise ähmastumist ning tähelepanu langust ”.