Intake of caffeine prevents risk taking after extreme sleep deprivationJune 10th, 2009 - 1:21 pm ICT by ANI
Washington, June 10 (ANI): Caffeine use prevents increased risk taking that occurs after several nights of total sleep deprivation, says a new study.
The research abstract will be presented today at SLEEP 2009, the 23rd Annual Meeting of the Associated Professional Sleep Societies.
Results indicate that despite extreme sleep deprivation, participants who had consumed caffeine did not exhibit increased risky behavior on the Balloon Analog Risk Task (BART), a computerized measure of impulsive risk-taking.
Participants who received the placebo were unchanged from baseline on the cost/benefit ratio of the BART at 51 hours of sleep deprivation, but showed a significant increase in risk-taking by 75 hours.
The caffeine group remained unchanged from baseline at either 51 or 75 hours of wakefulness and was significantly less risky than the placebo group at 75 hours.
According to principal investigator Maj. William D. “Scott” Killgore, PhD, research psychologist at the Harvard Medical School and Walter Reed Army Institute of Research, sleep deprivation may not have a simple linear effect on risk taking; however, there may be a ‘breaking point’ during which a person may show a drastic release in their ability to control or inhibit behavior. In this study, caffeine seemed to protect against that breaking point.
“People who were awake for three days straight became more impulsive and acted with less regard for consequences,” said Killgore.
“However, if they had consumed caffeine each night (about the equivalent of 1-2 cups of coffee every two hours from just after midnight until dawn), they showed no increase in risky behavior,” the expert added.
The study involved 25 healthy volunteers (21 men, 4 women) between the ages of 20 and 35 years, who were deprived of sleep for three nights. In a double-blind administration, subjects received 200 mg caffeine gum or identical placebo gum bihourly each morning from 1 a.m. to 7 a.m. during the period of sleep deprivation.
At mid-morning, subjects participated in a behavioral task of risky behavior that requires expenditure effort (BART), during which participants were asked to inflate virtual balloons on a computer and try to ‘cash in’ their value before they popped. The bigger the balloon, the more money it was worth. (ANI)
- Caffeine may prevent risk taking after sleep deprivation - Jun 12, 2009
- Caffeinated gum keeps Israeli pilots, commandos alert - May 18, 2012
- Too much or too little sleep may accelerate cognitive aging by 4 to 7 years - May 02, 2011
- Caffeine use may help overcome dry eye syndrome - Apr 19, 2012
- Boys get greater rush, more energy from caffeine than girls - Feb 19, 2011
- What you watch is what you do - Mar 08, 2011
- Sleep deprivation can cause night-time urination in kids - Feb 02, 2012
- Mental distress linked to shorter sleep durations in young adults - Sep 02, 2010
- Binge drinking increases impulsive behavior in males - Nov 17, 2010
- Daytime nap is good for your heart: Study - Mar 01, 2011
- Caffeinated drinks linked to increased risk of gout attacks - Nov 08, 2010
- Study shed new light on adolescents' risk-taking behaviour - May 03, 2010
- Coffee does not make you more alert: Study - Jun 04, 2010
- Losing a night's sleep 'can turn you into a reckless gambler' - Mar 08, 2011
- Boozing aggravates sleeping problems more in women than men - Feb 16, 2011
Tags: 4 women, benefit ratio, breaking point, d scott, gum, harvard medical school, killgore, linear effect, phd research, placebo group, principal investigator, professional sleep societies, research abstract, research psychologist, risky behavior, sleep deprivation, wakefulness, walter reed army, walter reed army institute, walter reed army institute of research