There are many risks of smoking and the purpose of this page is to outline the specific risks that are associated with smoking.
Smoking kills over 400,000 people a year -- more than one in six people in the United States -- making it more lethal than AIDS, automobile accidents, homicides, suicides, drug overdoses, and fires combined. It is estimated that the U.S. spends an astounding $50 billion each year on smoking-related health costs. Smoking may be even more dangerous now than 30 years ago, most likely because the lower tar and nicotine levels in most cigarette brands cause people to inhale more deeply. In one study only 42% of male lifelong smokers reached the age of 73 compared to 78% of nonsmokers.
People who are exposed to second-hand or side-stream smoke are also at risk. Smoke that is exhaled not only contains the same dangerous contaminants as inhaled smoke, but the exhaled smoke particles are smaller, so that they can reach distant sites in the lungs of involuntary or passive smokers and do great harm.
Does Smoking Affect Blood Pressure?
Smoking a cigarette raises the blood pressure by 5-10 mm Hg for about 30 minutes. If this is combined with drinking a cup of coffee, the effects are bigger and last longer.
Despite this, numerous epidemiological studies have found that people with hypertension are not more likely to be smokers than those with normal blood pressure, and conversely, that smokers are not more likely to be hypertensive than non-smokers. One possible explanation for this might be that smokers tend to weigh less than non-smokers, and that the effects of obesity and smoking on blood pressure cancel each other out. But even when smokers and non-smokers of the same body weight are compared their blood pressures are the same. This is probably because the blood pressure measurements are usually made when people are not smoking. If you smoke a pack a day, it will raise your average daytime pressure by about 5 mm Hg, even though your doctor may not detect this during an office visit.
The important thing about smoking is not what it does to your blood pressure, but that it greatly increases your risk of heart disease.
Smoking kills over 400,000 people a year -- more than one in six people in the United States -- making it more lethal than AIDS, automobile accidents, homicides, suicides, drug overdoses, and fires combined. It is estimated that the U.S. spends an astounding $50 billion each year on smoking-related health costs. Smoking may be even more dangerous now than 30 years ago, most likely because the lower tar and nicotine levels in most cigarette brands cause people to inhale more deeply. In one study only 42% of male lifelong smokers reached the age of 73 compared to 78% of nonsmokers.
People who are exposed to second-hand or side-stream smoke are also at risk. Smoke that is exhaled not only contains the same dangerous contaminants as inhaled smoke, but the exhaled smoke particles are smaller, so that they can reach distant sites in the lungs of involuntary or passive smokers and do great harm.
Does Smoking Affect Blood Pressure?
Smoking a cigarette raises the blood pressure by 5-10 mm Hg for about 30 minutes. If this is combined with drinking a cup of coffee, the effects are bigger and last longer.
Despite this, numerous epidemiological studies have found that people with hypertension are not more likely to be smokers than those with normal blood pressure, and conversely, that smokers are not more likely to be hypertensive than non-smokers. One possible explanation for this might be that smokers tend to weigh less than non-smokers, and that the effects of obesity and smoking on blood pressure cancel each other out. But even when smokers and non-smokers of the same body weight are compared their blood pressures are the same. This is probably because the blood pressure measurements are usually made when people are not smoking. If you smoke a pack a day, it will raise your average daytime pressure by about 5 mm Hg, even though your doctor may not detect this during an office visit.
The important thing about smoking is not what it does to your blood pressure, but that it greatly increases your risk of heart disease.
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