What Happens When You Smoke a Cigarette#SmokingEffects

Added: 2026-05-15

[00:00:00]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.

[00:00:36]Smoking also weakens the immune system and increases the risk of cancer, [music] heart attack, and stroke.

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