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Drugs - Coggle Diagram

- - - - Harmful effects of Nicotine : Highly Addictive - Nicotine stimulates the release of dopamine, creating pleasurable feelings, but it leads to addiction by reinforcing the need to smoke. Increases Heart Rate and Blood Pressure - Nicotine causes the release of adrenaline, leading to increased heart rate, constricted blood vessels, and raised blood pressure. Harmful to the Nervous System - Nicotine affects the central nervous system, impairing cognitive function over time.
        
        Harmful effects of Tar : Lung Damage - Tar is a sticky substance that coats the lungs, damaging lung tissue and cilia. Chronic Obstruction - Tar contributes to chronic obstructive pulmonary disease (COPD) by reducing lung elasticity and airflow.