Featured Research

from universities, journals, and other organizations

Feeling Sleepy? Don't Have A High Sugar, Low Caffeine Drink -- It Could Make Things Worse

Date:
July 22, 2006
Source:
John Wiley & Sons, Inc.
Summary:
An hour after consuming a high sugar, low caffeine drink you will tend to have slower reactions and experience more lapses in concentration than if you had simply drunk a decaffeinated, nil carbohydrate drink. This was the finding of research performed at the University of Loughborough and published in this month's Human Psychopharmacology: Clinical and Experimental.

An hour after consuming a high sugar, low caffeine drink you will tend to have slower reactions and experience more lapses in concentration than if you had simply drunk a decaffeinated, nil carbohydrate drink.

This was the finding of research performed at the University of Loughborough and published in this month's Human Psychopharmacology: Clinical and Experimental.

Ten healthy adults had volunteered to restrict their sleep to 5 hours on the day before participating in the trial. An hour after eating a light lunch they were given either an energy drink (42g sugar + 30mg caffeine) or an identically tasting zero-sugar drink. They then performed a monotonous 90-minute test during the afternoon 'dip' that assessed their sleepiness and ability to concentrate.

For the first 30 minutes there was no difference in the reaction times or error rates, but 50 minutes after consuming the drinks, the performance of those who had had the energy drink started to slip, and they became significantly sleepier.

Other researched work shows that high energy drinks that contain caffeine will boost concentration.(1)

"A 'sugar rush' is not very effective in combating sleepiness - so avoid soft drinks that contain lots of sugar but little or no caffeine," explains Professor Jim Horne, who runs the Sleep Research Centre at the University of Loughborough. "A much better way to combat sleepiness is to have a drink that contains more useful amounts of caffeine and combine this with a short nap".


Story Source:

The above story is based on materials provided by John Wiley & Sons, Inc.. Note: Materials may be edited for content and length.


Cite This Page:

John Wiley & Sons, Inc.. "Feeling Sleepy? Don't Have A High Sugar, Low Caffeine Drink -- It Could Make Things Worse." ScienceDaily. ScienceDaily, 22 July 2006. <www.sciencedaily.com/releases/2006/07/060721200906.htm>.
John Wiley & Sons, Inc.. (2006, July 22). Feeling Sleepy? Don't Have A High Sugar, Low Caffeine Drink -- It Could Make Things Worse. ScienceDaily. Retrieved August 28, 2014 from www.sciencedaily.com/releases/2006/07/060721200906.htm
John Wiley & Sons, Inc.. "Feeling Sleepy? Don't Have A High Sugar, Low Caffeine Drink -- It Could Make Things Worse." ScienceDaily. www.sciencedaily.com/releases/2006/07/060721200906.htm (accessed August 28, 2014).

Share This




More Health & Medicine News

Thursday, August 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

CDC Director On Ebola Outbreak: 'It's Worse Than I Feared'

CDC Director On Ebola Outbreak: 'It's Worse Than I Feared'

Newsy (Aug. 28, 2014) CDC director Tom Frieden says the Ebola outbreak is even worse than he feared. But he also said there's still hope to contain it. Video provided by Newsy
Powered by NewsLook.com
Treadmill 'trips' May Reduce Falls for Elderly

Treadmill 'trips' May Reduce Falls for Elderly

AP (Aug. 28, 2014) Scientists are tripping the elderly on purpose in a Chicago lab in an effort to better prevent seniors from falling and injuring themselves in real life. (Aug.28) Video provided by AP
Powered by NewsLook.com
Japan's Golden Generation Shows No Sign of Slowing Down

Japan's Golden Generation Shows No Sign of Slowing Down

AFP (Aug. 27, 2014) For many people in the autumn of their lives, walking up stairs is the biggest physical challenge they face. But in Japan, race tracks, hammer or pole vault await competitors at the Kyoto Masters, some of them more than 100 years old. Duration: 02:32 Video provided by AFP
Powered by NewsLook.com
Mini Pacemaker Has No Wires

Mini Pacemaker Has No Wires

Ivanhoe (Aug. 27, 2014) Cardiac experts are testing a new experimental device designed to eliminate major surgery and still keep the heart on track. Video provided by Ivanhoe
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins