Good data from a very large study that had extensive follow-up.

Clearly activity is good for us–and not just for weight loss, heart health or diabetes risk. It actually helps reduce the risk of a number of different cancers, and in some cases reduces them by a startling amount, underlining the fact that what we do every day may actually influence the “fate” of our health. You don’t have to take up sprinting or hit the gym every day, but getting in a healthy amount for you–and it’s generally a fairly personal determination–is a good idea. Exercise helps our bodies, and brains, in a number of different ways, and its connection with cancer risk is becoming clearer and clearer with each new study.

Source: Exercise Is Linked To Reduced Risk Of 13 Types Of Cancer, Study Finds – Forbes