Fighting afternoon fatigue? Try a quick nap instead of a cup of java, researchers say.
A study, presented this weekend at an international sleep conference in Cairns, Australia, found that the power nap is mightier than a hit of caffeine, according to a report at News.com.au.
Researchers from Loughborough University in the United Kingdom tested three popular options for fighting mid-afternoon tiredness on 14 "good sleepers," they said during a presentation at the 5th World Congress of the World Federation of Sleep Research and Sleep Medicine Societies.
The three methods tested were 90 minutes of extra sleep in the morning; a 20-minute nap at 2 in the afternoon; or a cup of coffee at 2:30 p.m. The scientists analyzed how each affected levels of alertness throughout the day and into the evening.
They found that a 20-minute siesta was a far better answer than coffee, and both coffee and a nap were better options than an extra long sleep-in.