A study of more than 100 firefighters from New York has highlighted how practising yoga could benefit the profession.
None of the firefighters taking part in the study - published in the Journal of Bodywork and Movement - had experience of yoga, but were active outside of work.
The classes were carried out at fire stations over six weeks and comprised typical yoga breathing, posture and relaxation techniques.
At the end, 62 per cent of those taking part said they felt more flexible, while 41 per cent reported feeling calmer and more focused.