Young male smokers may raise obesity risk in their future sons

April 2, 2014, Reuters

By Kate Keland

Men who start smoking before the age of 11 risk having sons who are overweight, British researchers have found, adding to evidence that lifestyle factors even in childhood can affect the health of future offspring.

The scientists said the findings, part of ongoing work in a larger “Children of the ’90s” study, could indicate that exposure to tobacco smoke before the start of puberty in men may lead to metabolic changes in the next generation.

“This discovery of transgenerational effects has big implications for research into the current rise in obesity and the evaluation of preventative measures,” said Marcus Pembrey, a professor of genetics at University College London, who led the study and presented its findings at a briefing on April 2. Continue reading