17 year study reveals I likely won't die from cancer

This study of 2560 Finns in Finland says that people who jogged 30 minutes a day had 50% less chance of prematurely dying from cancer.

Apparently, the key is making yourself sweat.

here's an excerpt:
"What these recent studies, share is the suggestion that, in order to use exercise to reduce the risk of cancer, you must make yourself sweat. In the Finnish study, the most beneficial exercise was both frequent and demanding. The researchers used METs (an acronym for metabolic equivalent of task, a numerical comparison of the oxygen or energy used during an activity versus the amount used at rest) to characterize their subjects’ exercise habits. A MET of 1 is the equivalent of lolling inertly on the couch. In his study, jogging steadily for 30 minutes or so represented a MET of about 10. The men whose METs reached at least 5 almost every day were the least likely to die of cancer, especially of the lung or the gastrointestinal tract. Similarly, in one of the studies included in the colon cancer review, women who walked briskly for five to six hours a week were much less likely to develop colon cancer than those who strolled for 30 minutes per week. "