The acute effects of yogic breathing exercises on craving and withdrawal symptoms in abstaining smokers
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Breathing exercises have been proposed as a way of combating cigarette cravings, potentially presenting a low-cost, easily scalable smoking cessation aid.
The aim of this study is to evaluate the acute impact of breathing exercises based on yogic pranayama on cravings in abstaining smokers.
Participants visited the laboratory on two occasions 24 h apart and were asked to abstain from smoking12 h prior to the first visit until the end of the second visit. Smokers (N = 96) were randomly allocated to a yogic breathing exercise (YBG) or video control (VCG) group. The former was instructed on breathing exercises, practised these for 10 min and asked to use these when experiencing cravings until the next visit. The latter was shown a breathing exercise video for 10 min and asked to concentrate on their breathing. Strength of urges to smoke, other craving measures and mood and physical symptoms associated with cigarette withdrawal were assessed at the beginning and end of the first visit, and again at the second visit.
At immediate follow-up, in the laboratory, all craving measures were reduced in YBG compared with VCG (strength of urges: F(1, 96) = 16.1, p < 0.001; cigarette craving: F(1, 96) = 11.3, p = 0.001; desire to smoke: F(1, 96) = 6.6, p = 0.012). There was no effect on mood or physical symptoms. Adherence to the breathing exercise regimen in the following 24 h was low, and at 24 h follow-up, there was no evidence of reduced cravings in YBG compared with VCG.
Simple yogic-style breathing exercises can reduce cigarette craving acutely in the laboratory. Further research is needed to determine how far this translates into field settings.
KeywordsYogic breathing Withdrawal symptoms Craving Smoking cessation intervention
We are grateful to the Cancer Research UK for funding the study and the support of the UK Centre for Tobacco Control Studies and the Wellcome Trust. We would also like to thank Sharlene Andrew, Antonia Shahab and Ndidi Superville for their help in carrying out this study.
Conflict of interest
RW undertakes consultancy and research for and receives travel funds and hospitality from manufacturers of medications for smoking cessation. He also undertakes training for smoking cessation advisors and has a share of a patent for a novel nicotine delivery device. LS has received honoraria for talk and travel expenses from manufacturers of medications for smoking cessation to attend meetings and workshops. BKS has a UKC-Wellcome trust capacity building grant to PHFI, India and has no conflict of interest to declare.
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