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Trying to take better control of your health? Steer clear of secondhand smoke. 

Here’s the surprising reason: The amount of many cancer-causing chemicals is even higher in secondhand smoke than it is in the smoke inhaled by smokers. Why? Because the term “secondhand smoke” encompasses both: 

the smoke exhaled by smokers after puffing on a cigar, cigarette or pipe AND   the smoke that drifts away from their...