A groundbreaking study conducted by University College London (UCL) has revealed that smoking a single cigarette reduces life expectancy by an average of 17 minutes for men and 22 minutes for women. This figure significantly surpasses the previous estimate of 11 minutes, as reported in a 2000 BMJ study.Smokings impact on lifespanThe research analyzed extensive data from the British Doctors Study and the Million Women Study, which monitored smoking habits and health outcomes over several decades. It found that smokers lose an average of 10 to 11 years of life expectancy compared to non-smokers.Smoking reduces life expectancy by about a decade, the researchers stated, emphasizing that these lost years equate to missing cherished moments such as family milestones and personal achievements.A striking analogy compared the impact of smoking to purchasing a pack of 20 cigarettes: each pack reduces life expectancy by nearly seven hours. This highlights the critical importance of quitting the habit.Benefits of quittingEncouragingly, the study provided insights into the life expectancy gains of cessation. A smoker consuming 10 cigarettes daily could regain a full day of life by quitting for just one week. Abstaining for eight months could reclaim a month of life, while quitting for a year might save up to 50 days.Dr. Jackson, a lead researcher, noted that smoking accelerates aging, often giving a 60-year-old smoker the health profile of a 70-year-old nonsmoker.Modern smoking trends and call to actionAlthough global tobacco consumption has decreased, the study warns of a concerning trend: smokers today inhale more deeply, exacerbating health risks. It underscores that partial reductions in smoking offer limited benefits, reinforcing the need for complete cessation.The findings serve as a wake-up call for robust cessation campaigns, urging smokers to quit and enjoy longer, healthier lives.