By being physically active, you can reduce the risk of breast, bowel and womb cancer.
Keeping active could help to prevent more than 3,000 cases of cancer in the UK every year.
Just 30 minutes of moderate activity a day, five days a week, can have a positive effect on your health.
And the more active you are, the more you can reduce your risk of cancer. Moderate activity doesn't have to cost you money or too much time.
It includes anything that leaves you warm and slightly out of breath, such as brisk walking, gardening, dancing or housework. Even small bits of activity are beneficial, and can add up over the course of a day.
It sounds like a cliche, but you can increase the amount of activity you do by making small changes like taking the stairs instead of the lift, or walking some of the way to work, school or the shops.
Even if you have been inactive for years, becoming more active now will have a positive effect on your health