When you smoke a cigarette, harmful chemicals enter your bloodstream within seconds, with nicotine reaching the brain to cause temporary calm or alertness while simultaneously increasing heart rate and tightening blood vessels; carbon monoxide displaces oxygen in the blood, forcing the heart to work harder, while smoke damages lung tissue and paralyzes cleaning cells, leading to coughing, breathing problems, and lung disease over time, while also weakening the immune system and increasing risks of cancer, heart attack, and stroke.
Deep Dive
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Deep Dive
What Happens When You Smoke a Cigarette#SmokingEffectsAdded:
This is what happens when you [music] smoke a cigarette. As soon as you inhale, smoke enters your lungs and harmful chemicals pass quickly into your bloodstream. Nicotine reaches the brain within seconds, causing a short feeling of calm or alertness. [music] But at the same time, your heart rate increases and your blood vessels tighten, making it harder for oxygen to move through your [music] body. Carbon monoxide from the smoke replaces oxygen in your blood, forcing [music] your heart to work harder. Inside the lungs, smoke damages tiny air sacs and paralyzes [music] the cells that clean out dirt and germs. Over time, this leads to coughing, breathing problems, and lung disease.
Smoking also weakens the immune system and increases the risk of cancer, [music] heart attack, and stroke.
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