Second-hand smoke linked to cognitive impairment

The research, published today in the British Medical Journal, highlighted a 44% increase in risk of cognitive impairment when exposed to high levels of second-hand smoke.

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<p><a href="http://www.physorg.com/news153722127.html">Second-hand smoke linked to cognitive impairment</a></p> <p>The research, published today in the <I>British Medical Journal</I>, highlighted a 44% increase in risk of cognitive impairment when exposed to high levels of second-hand smoke.</p>