It is a smoking gun confirming what many acute observers have long alleged: that protectionism has enabled Japanese auto makers to make super-large profits at home which they then invest in research and development as well as the most advanced production technologies.
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It is trickier than smoking, which Mr Bloomberg managed to ban successfully.
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It is already well established that smoking leads to reduced birth weight and an increased risk of premature birth.
At the end of the day what we are saying is - a blanket ban is not the only solution to the smoking debate, nor is it the best one.
"It is a so-called 'smoking gun' signal of dark matter annihilation, " Prof Bergstrom told the BBC.
" In unequivocal terms, it concluded that "cigarette smoking is causally related to lung cancer in men.
It is apparent that those who have entrenched anti smoking views will revel in the ban on smoking in enclosed public places.
Thus, it is strange that most of the emphasis on smoking bans has been on the projected large number of lives that will be saved by eliminating exposure to ETS in public places.
While the smoking population is half what it was a generation ago in the U.S. and other industrialized nations, with only one in five using tobacco, it's different in Africa and East Asia, where time stands still when it comes to cigarettes.
It is a powerful risk factor for these cancers -- almost as powerful as cigarette smoking is for lung cancer.
It is why the Labour government's ban on smoking in public places was so welcomed.
Today, smoking remains a stubborn habit because it is an integral part of Chinese social life.
"The clinic staff should be encouraged to actively participate in tobacco intervention routines and to convey that non-smoking is the norm, " it states.
Another theory is that smoking may make people anxious because it damages their breathing.
But anti-tobacco advocates suspect that it is really aimed at getting youngsters to take up the smoking habit.
For many anti-smokers it is inconceivable that rational people can understand the risks of smoking and still continue with the habit.
Smoking is such a big killer that it dilutes any association between extra pounds and death, while people who are already sick may be thinner because of their disease.
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Unlike smoking where the government can simply say it is bad for you, the message for alcohol has to be much more nuanced as there is no evidence that drinking within recommended levels is harmful and some research has even suggested it may be beneficial to health.
It is estimated that about a third of cancers are caused by smoking, diet, alcohol and obesity.
She added that it was "very encouraging to see that breastfeeding is up and smoking is down among women in these groups".
It caused damage to the genetic structure of cells - smoking is another way a human could be exposed to the chemical.
No one knows the precise reason for the increase, but it is thought to be linked to a rise in obesity and smoking.
There's still some of that around, though smoking is out of fashion, but today it's much more about gaining support through the media.
"The cultural norm is to sit, which is why sitting is the smoking of our generation: everyone does it, and it's so common, asking someone to be active definitely seems weird to everyone I ask, " she says.
Finally, the economic impact it could have on people of lower socioeconomic status is significant, since smoking is unevenly distributed.
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Zoe Harrison, care adviser at Diabetes UK, said it was already known that smoking or being in a smoky atmosphere is bad for us.
Previous research has shown that it is much harder for those who become chemically dependent on nicotine to quit smoking.
And if it is, should we take isolation as seriously as we do obesity or smoking in our health strategies?
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