Worldwide, as many as 40<span>% of children, 33% of non-smoking men and </span>35<span>% non-smoking women were exposed to second-hand smoke in 2004, researchers found. This exposure was estimated to have caused </span>379,000<span> deaths from heart disease,</span>165,000<span> from lower respiratory infections, </span>36,900<span> from asthma and 21,400 from lung cancer.</span>
