We all know that we should exercise, but many of us find it hard to find the time. I think the best way to ensure you do stick with it is to build more activity into your life and also to aim, as I do, to do regular bursts of brief exercise. This means not just aerobic exercise, like cycling, but muscle building by doing resistance exercises.
However unfit you may be, simply moving more and gradually increasing what you do is a great way to start. Do get advice on starting a program if you are not sure. Flushing out the sugar stored in your muscles helps keep your sugars down, so it’s well worth the effort!