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 December 18, 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 December 18, 2014).

Share This


More From ScienceDaily



More Mind & Brain News

Thursday, December 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Yoga Could Be As Beneficial For The Heart As Walking, Biking

Yoga Could Be As Beneficial For The Heart As Walking, Biking

Newsy (Dec. 17, 2014) Yoga can help your weight, blood pressure, cholesterol and heart just as much as biking and walking does, a new study suggests. Video provided by Newsy
Powered by NewsLook.com
1st Responders Trained for Autism Sensitivity

1st Responders Trained for Autism Sensitivity

AP (Dec. 16, 2014) More departments are ordering their first responders to sit in on training sessions that focus on how to more effectively interact with those with autism spectrum disorder (Dec. 16) Video provided by AP
Powered by NewsLook.com
Guys Are Idiots, According To Sarcastic Study

Guys Are Idiots, According To Sarcastic Study

Newsy (Dec. 12, 2014) A study out of Britain suggest men are more idiotic than women based on the rate of accidental deaths and other factors. Video provided by Newsy
Powered by NewsLook.com
Believing in Father Christmas Good for Children's Imaginations

Believing in Father Christmas Good for Children's Imaginations

AFP (Dec. 12, 2014) As the countdown to Christmas gets underway, so too does the Father Christmas conspiracy. But psychologists say that telling our children about Santa, flying reindeer and elves is good for their imaginations. Duration: 01:57 Video provided by AFP
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