Smoking reduces life expectancy by 15 to 25 years and is the single most preventable cause of death. In one study, only 42% of male lifelong smokers reached the age of 73, compared to 78% of nonsmokers. Smoking may be even more dangerous in women. 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.
The smoke is the most dangerous component of the cigarette. Smoke contains nitrogen oxide and carbon monoxide, which are harmful gases. When people inhale they also bring tar into their lungs. Tar itself includes 4,000 chemicals, some of which are known to cause cancer.
Experts warn that so-called safer cigarettes, which claim to filter out some of these toxins, are still not safe, as the smoke from these cigarettes still contain many harmful chemicals. Even worse, a 2002 study suggested that people who smoke as few as three standard brand cigarettes a day are at higher risk for blood vessel abnormalities that endanger the heart.
Passive smoking numbers shock
London - Passive smoking kills more than 4 000 people a year in Britain, new findings showed on Monday, prompting health professionals to call for a ban on smoking in pubs, restaurants and in the workplace.
Most of those fatally affected by inhaling other people's smoke are relatives of smokers, with some 3 600 people under 65 dying each from lung cancer, heart disease and stroke.
The research undertaken by the Royal College of Physicians (RCP) also revealed that at least 50 people working in the hospitality industry die every year.
The new figures are four times higher than those previously made available. Past estimates suggested second-hand smoke killed around 1 000 Britons a year.
Doctors described the figures as "startling" and said deaths could be prevented by banning cigarette smoking in all indoor public places and workplaces.
Major organizations, including the American Heart Association and US Surgeon General have stated that passive smoke poses a 30% increase in the risk of heart disease. One analysis of studies suggested that exposure to second-hand tobacco smoke may increase the risk of lung cancer in the nonsmoker by about 25%. The Environmental Protection Agency has classified second-hand smoke as a carcinogen.
Doesn' t it bother you that your choice is not only affecting yourself but is endangering the health of non-smokers too?
I can sum up a lot of reasons against smoking. What makes you start smoking in the first place and what do you gain with it?
All public places should ban smoking and have designated areas where smokers can keep their bad habits to themselves. The designated areas should be places that are in open air or special well ventilated rooms.