Posted at: 05/22/2013 6:36 AM
A new study says kids exposed to secondhand smoke in early childhood are more likely to develop aggressive behavior later in life.
Researchers analyzed smoke exposure and behavior data on more than 2,000 children from birth to age 10.
Kids who were exposed to smoke, even temporarily, were more likely to be physically aggressive and anti-social by the time they finished fourth grade.
Experts say nearly four out of 10 kids worldwide are exposed to second-hand smoke.