Researchers have discovered a new adverse effect of smoking

Researchers have identified a new negative effect of smoking. A study published in the journal Archives of General Psychiatry shows that smoking accelerates cognitive decline rate recorded among middle-aged men.
Scientists estimate that a typical smoker aged 50 years declining mental capacity is similar to that found among non-smokers by 10 years older. This acceleration of cognitive decline persists even after being taken into account such factors as education level and health.

Leader of the study, Séverine sword at University College London, commented: "Although know that smoking is a risk factor regarding lung diseases, cancer and cardiovascular diseases, our research has shown that it has a negative effect on cognitive aging. This effect can be observed from the age of 45 years ".
The effect is not limited to people who smoke many cigarettes. "Men who smoke often had similar negative effects as those who smoke often," Sword said, adding that "this shows the importance of abandoning this vice."
To the surprise of researchers, women have been given the same cognitive decline among men studied.
The study was conducted on 7,236 UK civil servants over a period of 25 years.
Researchers have identified an encouraging result: men who had left smoking for more than 10 years had not accelerated cognitive decline, with results similar to men who never had smoked.
"So everyone quit smoking reduce the risk of accelerated brain aging victim of this," said Joseph Quinn, a neuroscientist at Oregon Health and Science University.
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