Children who engage in regular moderate-to-vigorous physical activity (MVPA) are significantly less likely to start smoking as teenagers.
A groundbreaking study published in the Journal of Behaviour Research and Therapy has found a strong link between childhood physical activity and reduced tobacco use in adolescence. The research highlights that children who maintained higher MVPA levels from an early age were significantly less likely to take up smoking in their teenage years.
Largest Long-Term Study on Exercise and Teen Smoking
The study followed 2,503 children from the University of Bristol’s “Children of the 90s” cohort, tracking them from age 11 through young adulthood (age 24). Researchers analyzed their physical activity levels using accelerometers and recorded their smoking habits at ages 13, 15, and 24.
Findings revealed that:
At age 13, only 6 out of 1,000 children who engaged in MVPA had initiated smoking, compared to 15 out of 1,000 in the overall group—a 60% reduction in smoking risk.
By age 24, continuous exposure to MVPA prevented smoking in 8 out of 1,000 young adults when the general smoking prevalence was 266 out of 1,000.
Non-smokers at ages 13 and 15 were found to engage in 15 more minutes of MVPA daily by age 24, compared to their peers who had started smoking.
How Physical Activity May Protect Against Smoking
Experts believe the protective effect of exercise against smoking is due to multiple factors:
Better emotional regulation – Exercise reduces stress and anxiety, lowering the likelihood of turning to nicotine.
Health-conscious behaviors – Active children may be more aware of the risks of smoking and avoid it.
Social environments – Sports and fitness activities often discourage tobacco use.
Why Prevention Matters More Than Quitting
Dr. Andrew Agbaje, a physician and associate professor of Clinical Epidemiology and Child Health at the University of Eastern Finland, emphasized that preventing smoking initiation in children is far more impactful than quitting in adulthood.
“Stopping smoking in adulthood is good but late since a residual long-term risk of heart disease remains for the next 30 years,” Agbaje stated. “Preventing childhood smoking initiation is critical to lifelong health, and these findings may also apply to vaping and e-cigarette use, given that nicotine remains the common addictive ingredient.”
