It’s a bad news to smokers. According to the study, they can’t play sex longer:

Smoking can render a person impotent, according to a new study. Men who smoke more than 20 cigarettes a day are 40 per cent more likely to be affected by erectile dysfunction, according to the Australian study where researchers covered more than 8,000 men in the age group of 16-59.(LINK)

And a study found out that it also affects the sperm count:

Another study carried out in California in the U.S. indicated that smog tends to reduce sperm count. In a survey of 48 men in Los Angeles, who had donated their sperm to a sperm bank at least 10 times in a two-year period, showed that their sperm counts fell as ozone levels in the air increased.

So, the authorities adviced them:

Chris Millet, from Imperial College London, who was associated with the study, said these findings should persuade male smokers to quit.

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