Smoking during pregnancy increased the risk of offspring attention-deficit/hyperactivity disorder (ADHD). The risk of ADHD was greater for children whose mothers were heavy smokers than for those whose mothers were light smokers, finds meta-analysis of studies totaling 2,998,059 participants.
http://ift.tt/2Cu3Vhq Smoking during pregnancy increased the risk of offspring attention-deficit/hyperactivity disorder (ADHD). The risk of ADHD was greater for children whose mothers were heavy smokers than for those whose mothers were light smokers, finds meta-analysis of studies totaling 2,998,059 participants. Click here 
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