A new study which will be presented at the American Institute for Cancer Research (AICR) in Washington suggests that sitting at one place for a long time without any activity could increase the risk of breast cancer.
The study was conducted by researchers from the Alberta Health Services-Cancer Care in Canada who analyzed more than 123,000 people and found that over 49,000 breast cancer cases and 43,000 colon cancer cases could be attributed to lack of physical activity.
The researchers also said that inactivity could be one of the reasons for more than 37,000 cases of lung cancer, 30,000 cases of prostate cancer and 1,800 cases of ovarian cancer. Lead researcher Christine Friedenreich said that regular physical activity could reduce the risks of some common cancers by more than 25 percent.
"This gives us some idea of the cancers we could prevent by getting people to be more active. This is a conservative estimate. The more physical activity you do, the lower your risk of these cancers", she said.