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On rest and recovery days it is important to avoid doing the worst thing you can do for your body... nothing. Examples of rest and recovery activities are walking, static stretch exercises (after a warm up and loosening up period), dynamic stretching, swimming, water running, and riding a bike.
Regular physical activity. This can be an important part of your recovery after treatment. It can help you to feel better in yourself and help to build up your energy levels. Keeping active can also reduce the risk of heart disease, stroke and diabetes. Talk to your cancer specialist or GP before you start exercising.