The Dangers of Smoking
In anyone, of any age, smoking increases the risk of heart disease, stroke and cancer. Even passive smoking has these same risks. Passive smoking puts children in a high risk group for respiratory disease such as bronchitis and asthma and can damage their development giving them educational difficulties as well as the recognised risks associated with inhaling smoke. Smoking increases the heart rates and pushes up the blood pressure because the nicotine stimulates the nervous system. It also reduces the amount of oxygen getting to the brain and thickens the blood, increasing the risk of clots leading, as already mentioned to cardiovascular disease in the form of strokes and heart attacks. The tar deposited from the smoke into the lungs clogs arteries and damages the air sacs causing shortness of breath and long-term damage. In each cigarette there are at least 4,000 chemicals and at least 60 of them are known to cause cancer. Most people will think of lung cancer as being ...