<div><p>NEW YORK (Reuters Health) - Smoking has long been known to boost tuberculosis risk, and a new study from Hong Kong suggests that being exposed to someone else's tobacco smoke also increases the likelihood of contracting the disease.</p><p>Dr. Chi C. Leung of the Wanchai Chest Clinic in ...

<div><p>A major report confirms what health officials long have believed: Bans on smoking in restaurants, bars and other gathering spots reduce the risk of heart attacks among nonsmokers.</p><p>"If you have heart disease, you really need to stay away from secondhand smoke. It's an immediate threat to ...