Doctor insights on:
Does Cigarette Smoking Cause Cancer
More than 46 million, nearly 21% of adults in the United States, smoke, according to a 2010 report by the U.S. Centers for Disease Control and Prevention (CDC). Smoking rates remained constant from 2005 - 2009. Smoking kills more than 5 million people a year worldwide, accounting for 1 out of ...Read more
Tobacco: When burned produces a number of arylhydrocarbons, and other carcinogens that directly attack human dna leading to mutations. Some are repaired, others propagate over time, mean time, nicotine addicts. The more exposure, probabilistic risk increases for cancer, cardiovascular and lung disease. Evidence is overwhelming indisputable.. ...Read more
So what specifically is happening when a heavy smoker begins to get recurring pleuritis directly caused by the cigarette smoking? No cancer or asthma
Good question: To attribute recurrent pleuritis to smoking cigarettes is perhaps problematic. I'm not an expert in recurring pleuritis but i would be looking for other possibilities. Chronic coughing might make irritation of the pleura more likely but i'm not aware of the chronic bronchitis so common in smokers being the source of pleuritis you may have heard this from someone who knows more than i or not. ...Read more
100: 100 cigarretes on a lifetime increases risk for at least 10 years. However about 20% of smokers end up with lung cancer on their lifetime.However everybody does get emphysema to various degrees and accelerated arteriosclerosis triggering heart attacks and strokes at a younger age by persistent cigarrete smoking.Animal experiments dogs usually get cancer after 13, 000cigs. ...Read moreSee 1 more doctor answer
Nobody truly knows: but the chronic irritation of certain aromatic hydrocarbons in the smoke ("tars") progressively irritates cells, increases the number that die, with new ones taking their place that over many years become more and more abnormal (metaplasia), finally becoming very abnormal (dysplasia) and ultimately becoming cancer (neoplasia). I do not know the exact cellular mechanisms, but some scientists do. ...Read more
Serious consequence: Smoking causes more than four in five cases of lung cancer. Lung cancer has one of the lowest survival rates of all cancers. Tobacco smoke contains more than 70 different cancer-causing substances. When you inhale smoke, these chemicals enter your lungs and spread around the rest of your body. Scientists have shown that these chemicals can damage dna and change important genes. ...Read more
What causes bladder cancer if not smoking? I've recently been diagnosed with bladder cancer by my doctor, who said it's almost always caused by smoking. I'm 55 now, and smoked two cigarettes when i was a teenager. Could diet or something i've been drinkin
Dyes and chemicals: It doesn't sound like smoking has anything to do with your bladder cancer. Were you exposed to aniline dyes, chemicals, or chemotherapy in the past? These are risk factors. Sometimes it's just plain bad luck. Whatever the cause, there are good treatments. Don't blame yourself! ...Read moreSee 2 more doctor answers
Wish we knew: The medical community wishes we knew the answer to this question. It's not as simple as #of years smoking=risk of cancer. There are other factors related to contracting cancer - genetic disposition and other "triggers". If you're currently smoking, the sooner you quit - the better! that we know for sure. Good luck! ...Read moreSee 2 more doctor answers
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