The childhood obesity window is closing: Genetic influence of height and weight grows as we get older

April 23, 2014, Medical Daily

By Matthew Mientka

A new study on twins shows the importance of early intervention as America’s childhood obesity rate continues to rise after doubling during the past 30 years, with more than one-third of children overweight and obese.

By comparing data collected on more than 2,500 pairs of twins with genomic analysis, researchers from King’s College London and the University of California, Los Angeles (UCLA), got a pretty good look at the interplay between nature and nurture. They found the influence of genetics on individual differences in body mass index (BMI) rose from 43 percent at age 4 to 82 percent by age 10, suggesting parents and clinicians might intervene with improved diet and lifestyle choices at earlier ages — when the time is ripe. Continue reading