Gear up for some physical exercise sessions as the risk of breast cancer may go up by 210 percent in obese and overweight women with a certain genetic marker said a study. Weight loss is likely a good way to reduce breast cancer risk in general said Ting-Yuan David Cheng from Roswell Park Cancer Institute in the US. White women with the genetic marker were nearly 70 percent more likely to have breast cancer compared to those without the marker the study found. The marker is found within a gene called mTOR which is involved in cell growth and blood-vessel
