Eating less late at night, say rresearchers at the Perelman School of Medicine (Univ of Penn) may help curb the concentration and alertness deficits ccompanying sleep deprivation.
When sleep restricted, adults tend to snarf up 500 additional calories if awake long hours.
They took 44 subjects, 21-50, and gave them unlimited food and water during the day. This was followed by four hours of sleep a night for three nights. On the fourth night, 20 participants still got unlimited food and water, but 24 others were only allowed water from 10 PM to 4 AM, when they went to sleep.
Subjects who fasted (water only) performed better in reaction times than those who had eaten.
Those who ate showed significantly slower reaction time on the fourth night of sleep restriction compared with the first three. The water drinkers did not.
Sleep deprivation also contributes to weight gain, it has been found. Not eating at night also helped with that.
Sooo...awake, tired, and drinking water...Sounds great. Still, if you have to work late, maybe bear it in mind.