Teens of mothers who were overweight or obese when they became pregnant may be at increased risk for asthma symptoms, according to a new study. It included nearly 7,000 teens aged 15 and 16 who were born in northern Finland between July 1985 and June 1986. The researchers also looked at health information collected from the teens’ mothers, including height and weight before pregnancy. About 10 percent of the teens had wheezing, about 20 percent had wheezing at some point, 6 percent had asthma and 10 percent had asthma at some point. After accounting for a number of other factors, the researchers found that a mother’s weight before she became pregnant had a strong effect on a teen’s wheeze/asthma risk.
