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Puffing away sadness Harvard Health Chronic nicotine increases midbrain dopamine neuron activity and biases individual strategies towards reduced exploration in mice Nature Communications On Science: Can you smoke cigarettes without becoming addicted? STLPR How does nicotine work 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 Sex Differences in the Brain's Dopamine Signature of Cigarette Smoking Journal of Neuroscience
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