The Harmful Substances in Cigarette Smoke.

• Lines the air passages, increasing mucus production and paralyzing and damaging cilia, causing bronchitis.
• Mucus clogs airways
• Pneumonia
• Increases the risk of lung cancer

Irritate the air passages, causing inflammation and increased mucus secretion, resulting in chronic bronchitis.

• Addiction
• Raises blood pressure
• Increases heart rate
• Thrombosis
• Can lead to a stroke

• Reduces the amount of of oxygen available to tissues
• Increases blood cholesterol levels
• Increases the risk of atherosclerosis and thrombosis, which can lead to coronary heart disease.