India, Sept. 15 -- That cigarette you light up after a long day can feel like a moment of relief - a small reward for making it through work. But have you ever stopped to think about what that smoke is doing beyond your lungs? While the dangers of smoking and vaping are well known, quitting is often easier said than done once nicotine addiction takes hold. So, what makes quitting so important, and how does smoking affect the rest of your body?

Dr Jeremy London, a board-certified cardiothoracic surgeon with 25 years of experience, is breaking down why smoking and vaping are "the single worst thing you can do for your body." In an Instagram video shared on September 14, the heart surgeon explains how these habits can affect virtually every...