what do cigarettes do to your brain Smoking shrinks the and drives up Alzheimer’s risk, new study finds Chemicals in Tobacco Products and
Chemicals in Tobacco Products and Your Health StoryMD Smoking and the brain: What are the effects? Understanding how habits work, especially with smoking, requires looking at the brain's reward system and how it forms automatic behaviors. At the heart of this process is dopamine, a neurotransmitter responsible for Cigarette Addiction Affects Men, Women's Brains Differently; Brain Scans Reveal Need For Tailored Treatment What Happens When You Smoke? Cigarettes contain nicotine, tar, and carbon monoxide. Short term effects: Increased heart rate Higher blood pressure Reduced oxygen Long term effects: Lung cancer
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