A study in the December issue of SLEEP shows that paid work time is the primary waking activity exchanged for sleep, with short sleepers working 1.55 more hours on weekdays and 1.86 more hours on weekends than normal sleepers. Short sleepers also traveled more, started traveling earlier in the morning, and stopped later in the evening than normal sleepers. According to the authors, the study suggests that chronic sleep loss potentially could be prevented by targeted strategies such as making work start times more flexible.
