Researchers from the Rabin Medical Center in Israel collected body mass index (BMI) data on one million adolescent boys around age 17, from 1967 to 2005.

They then crosschecked the data with the country's cancer registry to see which boys eventually developed cancer, following up as soon as 2.5 years to as late as 40 years to track an individual's progress.

The team was shocked to find how prevalent cancer became in males who grew up in low socioeconomic environments or were overweight throughout adolescence. Up to age 17, the risk factors showed significant influence on the boys' lives.

Adolescents who were overweight faced a 2.1-fold increased risk for esophageal cancer, while those who grew up disadvantaged faced a 2.2-fold increased risk for gastric cancer.

Less education also saw rising risk for gastric cancer (1.9-fold) as did immigrant status from ............read more>>>>>>>http://www.planehealth.net/2013/10/overweight-teens-face-greater-risk-for.html