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why is smoking dangerous to our health

has disastrous consequences: It damages just about every organ of the body and leads to the general deterioration of the smoker's health. The U. S. Centers for Disease Control and Prevention estimates that cigarette smoking is responsible for nearly one of every five deaths in the United States, or about 438,000 deaths every year. Cigarette smoking is deadlier on an annual basis than, motor vehicle crashes, drug abuse, alcoholism, suicide, and murder в
combined. Smoking and Cancer Cancer was one of the first diseases that researchers linked to cigarette smoking, and it continues to be smoking's most notorious health effect. Cigarette smoking and tobacco use causes about one-third of all cancer deaths in the United States. is most closely linked to cigarette smoking. Smoking causes nearly all lung cancer deaths in America, about 90 percent of male deaths and 80 percent of female deaths. The chances that a will die of lung cancer is 23 times that of someone who's never smoked, while women who smoke run a risk 13 times greater than non-smokers. But lung cancer is far from the only form of cancer attributable to cigarette smoking. Researchers have also linked smoking to cancers of the bladder, larynx, mouth, throat, esophagus, pancreas, stomach, kidney, and cervix. Smoking also is a known cause of some forms of leukemia. Smoking and Respiratory Disease Breathing in cigarette smoke is terribly harmful to the lungs. The damage starts with the first puff and continues until the smoker quits. About 9 out of 10 deaths from lung diseases are caused by smoking.

A cigarette smoker's risk of dying from a chronic obstructive lung disease like chronic bronchitis or emphysema is 10 times that of non-smokers: Chronic bronchitis occurs when cigarette smoke prompts the airways to produce too much protective mucus. The smoker develops a chronic cough to clear their airways of the mucus so they can breathe. Eventually, the airways swell and become blocked by scar tissue and mucus. The smoker with bronchitis has a higher risk of contracting and other infections. Emphysema occurs as cigarette smoke destroys the tiny air sacs inside the lungs that allow oxygen to be diffused into the bloodstream. The process destroys the smoker's ability to draw breath, eventually making them gasp and struggle for air. Smoking and Cardiovascular Disease Smoking also affects the heart and the circulatory system, and has been linked to coronary heart disease, the number one killer in the United States. Cigarette smokers are as much as four times more likely to be diagnosed with coronary heart disease than non-smokers, and are twice as likely to suffer strokes. Other Health Effects of Smoking Skin. Smoking prematurely ages the skin, causing facial wrinkles. It also slows the skin's healing ability and has been linked to. Eyes. Smoking has been linked to the development of cataracts, a condition in which the clear lens of the eye becomes cloudy. Cigarette smoking also can cause macular degeneration and do damage to the optic nerve.

Mouth. Smoking is estimated to be responsible for three of every four cases of periodontal disease in the United States. Toxins contained in cigarette smoke damage the gums, causing them to recede and putting the smoker at greater risk for tooth decay. The Dangers Secondhand Smoke Cigarette smoking can harm your health even if you're not a smoker. Exposure to is believed to cause the lung cancer or heart disease deaths of about 49,000 non-smokers every year. in their homes or workplaces have a 25 to 30 percent increase in their heart disease risk and a 20 to 30 percent increase in their lung cancer risk. Children whose parents or caregivers smoke have an increased risk of asthma, bronchitis, pneumonia, coughing, wheezing, and ear infections. Babies of smokers have a higher risk of sudden infant death syndrome, or SIDS. Although the health consequences of smoking are dire, it's important to remember that you can. Once you give up cigarettes your body can begin to repair some of the damage smoking has caused. If you smoke, you are more likely to have a stroke than someone who doesn t smoke. In fact, smoking increases your risk of having a stroke by at least 50%, which can cause brain damage and death. And, by smoking, you double your risk of dying from a stroke. One way that smoking can increase your risk of a stroke is by increasing your chances of developing a brain aneurysm. This is a bulge in a blood vessel caused by a weakness in the blood vessel wall. This can rupture or burst which will lead to an extremely serious condition known as a subarachnoid haemorrhage, which is a type of stroke, and can cause extensive brain damage and death.

The good news is that within two years of stopping smoking, your risk of stroke is reduced to half that of a non-smoker and within five years it will be the same as a non-smoker. Your lungs can be very badly affected by smoking. Coughs, colds, wheezing and asthma are just the start. Smoking can cause fatal diseases such as pneumonia, emphysema and lung cancer. Smoking causes 84% of deaths from lung cancer and 83% of deaths from chronic obstructive pulmonary disease (COPD). COPD, a progressive and debilitating disease, is the name for a collection of lung diseases including chronic bronchitis and emphysema. People with COPD have difficulties breathing, primarily due to the narrowing of their airways and destruction of lung tissue. Typical symptoms of COPD include: increasing breathlessness when active, a persistent cough with phlegm and frequent chest infections. Whilst the early signs of COPD can often be dismissed as a smoker s cough, if people continue smoking and the condition worsens, it can greatly impact on their quality of life. You can slow down the progression of the disease and stopping smoking is the most effective way to do this. Smoking causes unattractive problems such as bad breath and stained teeth, and can also cause gum disease and damage your sense of taste. The most serious damage smoking causes in your mouth and throat is an increased risk of cancer in your lips, tongue, throat, voice box and gullet (oesophagus).

More than 93% of oropharyngeal cancers (cancer in part of the throat) are caused by smoking. The good news is that when you stop using tobacco, even after many years of use, you can greatly reduce your risk of developing head and neck cancer. Once you ve been smokefree for 20 years, your risk of head and neck cancer is reduced to that of a non-smoker. Smoking can cause male impotence, as it damages the blood vessels that supply blood to the penis. It can also damage sperm, reduce sperm count and cause testicular cancer. Up to 120,000 men from the UK in their 20s and 30s are impotent as a direct result of smoking, and men who smoke have a lower sperm count than those who are non-smokers. For women, smoking can reduce fertility. One study found that smokers were over three times more likely than non-smokers to have taken more than one year to conceive. The study estimated that the fertility of smoking women was 72% that of non-smokers. Smoking also increases your risk of cervical cancer. People who smoke are less able to get rid of the HPV infection from the body, which can develop into cancer. Smoking while you are pregnant can lead to miscarriage, premature birth, stillbirth and illness, and it increases the risk of cot death by at least 25%. If you are pregnant, you can find lots more information on the specialist. The good news is that once you stop smoking, your health improves and your body will begin to recover.

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