Physical Activity & Cancer Prevention KM

Hi Doc, are there any medicines you could prescribe me to reduce my risk of cancer? And how much will this cost me?
Well there are many drugs i could prescribe you, but there is one other promising alternative which is completely free.
Oh yeah, what's that?
It's called Physical Activity and it's one of the easiest modifiable risk factors for cancer out there.
But i hate exercise!
It's a lot more simple than that! Physical Activity can be performed almost anywhere, even just by jogging on the spot in your own office!
But how much do i have to do?
Well, it's recommended that you take part in at least 30 minutes of Physical Activity, 5 days per week. But..There is convincing evidence to suggest the more you do the less risk you will have for a number of cancers!
I don't understand though, how does this all work?
Well, by providing evidence on the biological mechanisms, the optimal types, duration and intensity of Physical Activity and influences of the built environment, we aim to provide answers to your question!