<a href="http://news.bbc.co.uk/today/hi/today/newsid_9661000/9661082.stm" target="_blank" rel="nofollow">http://news.bbc.co.uk/today/hi/today/newsid_9661000/9661082.stm</a>

<a href="http://www.bbc.co.uk/news/health-16138148" target="_blank" rel="nofollow">http://www.bbc.co.uk/news/health-16138148</a>

Both articles on studies done by Bristol University, well worth a read.

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