Featured Research

from universities, journals, and other organizations

Debate Brews Over Caffeine Addiction -- Study Also Confirms Caffeine Improves Alertness And Energy

Date:
March 22, 1999
Source:
American Chemical Society
Summary:
Most coffee drinkers feel they function better after that morning cup of java, and many researchers agree. But is it addictive? A French medical researcher will present new data that says it isn't addictive for most people, at the national meeting of the American Chemical Society, the world's largest scientific society.

ANAHEIM, Calif., March 21 -- Most coffee drinkers feel they function better after that morning cup of java, and many researchers agree. But is it addictive? A French medical researcher will present new data that says it isn't addictive for most people, at the national meeting of the American Chemical Society, the world's largest scientific society.

Related Articles


At doses of one to three cups of coffee a day, a fairly typical consumption for Americans, caffeine has no affect on the area of the brain involved with addiction, dependence and reward, claims Astrid Nehlig, Ph.D., research director at the Strasbourg, France, laboratory of INSERM, the French National Health and Medical Research Institute.

Nehlig recently completed a study with laboratory animals, which confirmed that caffeine consumed in moderation contributes to increased alertness and energy but does not bring about dependence at those levels. Caffeine appears to act differently from amphetamines, cocaine, morphine or nicotine, Nehlig says. Even at low doses, these drugs trigger functional activity in the shell of the nucleus accumbens, the part of the brain responsible for addiction, she says. It would take the equivalent of about seven or more cups of caffeinated coffee consumed in rapid succession to begin to activate this portion of the brain. Even then, she adds, "activation of the circuitry of addiction and reward occurs only at high doses of caffeine, which probably induce already adverse effects." These effects can include anxiety, nervousness and depression, Nehlig says.

Acknowledging that there is a "big debate" among researchers about whether caffeine is addictive, Nehlig noted "one epidemiological study reported dependence over a wide dose range," from as little as one or two cups per day to as much as 25 cups.


Story Source:

The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.


Cite This Page:

American Chemical Society. "Debate Brews Over Caffeine Addiction -- Study Also Confirms Caffeine Improves Alertness And Energy." ScienceDaily. ScienceDaily, 22 March 1999. <www.sciencedaily.com/releases/1999/03/990322061015.htm>.
American Chemical Society. (1999, March 22). Debate Brews Over Caffeine Addiction -- Study Also Confirms Caffeine Improves Alertness And Energy. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/1999/03/990322061015.htm
American Chemical Society. "Debate Brews Over Caffeine Addiction -- Study Also Confirms Caffeine Improves Alertness And Energy." ScienceDaily. www.sciencedaily.com/releases/1999/03/990322061015.htm (accessed October 25, 2014).

Share This



More Mind & Brain News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Academic Scandal Shocks UNC

Academic Scandal Shocks UNC

AP (Oct. 23, 2014) A scandal involving bogus classes and inflated grades at the University of North Carolina was bigger than previously reported, a new investigation found. (Oct. 23) Video provided by AP
Powered by NewsLook.com
Working Mother Getaway: Beaches Turks & Caicos

Working Mother Getaway: Beaches Turks & Caicos

Working Mother (Oct. 22, 2014) Feast your eyes on this gorgeous family-friendly resort. Video provided by Working Mother
Powered by NewsLook.com
What Your Favorite Color Says About You

What Your Favorite Color Says About You

Buzz60 (Oct. 22, 2014) We all have one color we love to wear, and believe it or not, your color preference may reveal some of your character traits. In celebration of National Color Day, Krystin Goodwin (@kyrstingoodwin) highlights what your favorite colors may say about you. Video provided by Buzz60
Powered by NewsLook.com
First-Of-Its-Kind Treatment Gives Man Ability To Walk Again

First-Of-Its-Kind Treatment Gives Man Ability To Walk Again

Newsy (Oct. 21, 2014) A medical team has for the first time given a man the ability to walk again after transplanting cells from his brain onto his severed spinal cord. Video provided by Newsy
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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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