Featured Research

from universities, journals, and other organizations

Secondhand smoke may increase vulnerability to nicotine addiction

Date:
May 3, 2011
Source:
NIH/National Institute on Drug Abuse
Summary:
Exposure to secondhand smoke, such as a person can get by riding in an enclosed car while someone else smokes, has a direct, measurable impact on the brain -- and the effect is similar to what happens in the brain of the person doing the smoking. In fact, exposure to this secondhand smoke evokes cravings among smokers, according to a new study.

Exposure to secondhand smoke, such as a person can get by riding in an enclosed car while someone else smokes, has a direct, measurable impact on the brain -- and the effect is similar to what happens in the brain of the person doing the smoking. In fact, exposure to this secondhand smoke evokes cravings among smokers, according to a study funded by the National Institute on Drug Abuse (NIDA), part of the National Institutes of Health.

The study, published May 1 in Archives of General Psychiatry, used positron emission tomography (PET) to demonstrate that one hour of secondhand smoke in an enclosed space results in enough nicotine reaching the brain to bind receptors that are normally targeted by direct exposure to tobacco smoke. This happens in the brain of both smokers and non-smokers.

Previous research has shown that exposure to secondhand smoke increases the likelihood that children will become teenage smokers and makes it more difficult for adult smokers to quit. Such associations suggest that secondhand smoke acts on the brain to promote smoking behavior.

"These results show that even limited secondhand smoke exposure delivers enough nicotine to the brain to alter its function," said NIDA Director Nora D. Volkow, M.D. "Chronic or severe exposure could result in even higher brain nicotine levels, which may explain why secondhand smoke exposure increases vulnerability to nicotine addiction."

"This study gives concrete evidence to support policies that ban smoking in public places, particularly enclosed spaces and around children," said Arthur Brody, M.D., of the UCLA Department of Psychiatry & Biobehavioral Sciences and corresponding author for the article.

The Surgeon General's Report concluded in 2006 that secondhand smoke causes heart disease and lung cancer in nonsmoking adults and many serious health conditions in children, including sudden infant death syndrome, respiratory infections, and more severe asthma. According to the CDC, almost 50,000 deaths per year can be attributed to secondhand smoke.


Story Source:

The above story is based on materials provided by NIH/National Institute on Drug Abuse. Note: Materials may be edited for content and length.


Journal Reference:

  1. C. S. Culbertson, J. Bramen, M. S. Cohen, E. D. London, R. E. Olmstead, J. J. Gan, M. R. Costello, S. Shulenberger, M. A. Mandelkern, A. L. Brody. Effect of Bupropion Treatment on Brain Activation Induced by Cigarette-Related Cues in Smokers. Archives of General Psychiatry, 2011; DOI: 10.1001/archgenpsychiatry.2010.193

Cite This Page:

NIH/National Institute on Drug Abuse. "Secondhand smoke may increase vulnerability to nicotine addiction." ScienceDaily. ScienceDaily, 3 May 2011. <www.sciencedaily.com/releases/2011/05/110502174226.htm>.
NIH/National Institute on Drug Abuse. (2011, May 3). Secondhand smoke may increase vulnerability to nicotine addiction. ScienceDaily. Retrieved October 21, 2014 from www.sciencedaily.com/releases/2011/05/110502174226.htm
NIH/National Institute on Drug Abuse. "Secondhand smoke may increase vulnerability to nicotine addiction." ScienceDaily. www.sciencedaily.com/releases/2011/05/110502174226.htm (accessed October 21, 2014).

Share This



More Mind & Brain News

Tuesday, October 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

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
Portable Breathalyzer Gets You Home Safely

Portable Breathalyzer Gets You Home Safely

Buzz60 (Oct. 21, 2014) Breeze, a portable breathalyzer, gets you home safely by instantly showing your blood alcohol content, and with one tap, lets you call an Uber, a cab or a friend from your contact list to pick you up. Sean Dowling (@SeanDowlingTV) has the details. Video provided by Buzz60
Powered by NewsLook.com
Your Birth Season Might Determine Your Temperament

Your Birth Season Might Determine Your Temperament

Newsy (Oct. 20, 2014) A new study says the season you're born in can determine your temperament — and one season has a surprising outcome. Video provided by Newsy
Powered by NewsLook.com
Movies Might Desensitize Violence For Parents, Not Just Kids

Movies Might Desensitize Violence For Parents, Not Just Kids

Newsy (Oct. 20, 2014) A study suggests that parents become desensitized to violent movies as well as children, which leads them to allow their kids to view violent films. 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