Exercise is good for us throughout our lives, even when we are babies or very old. But as the body changes, the kinds of exercise that work best for us change too. When can we best improve our balance and co-ordination? When can we benefit most from strength training? When do we start to lose muscle - and can we do anything about it? You can find the answers to all these questions, and many more, in this book. Part of the Your Body For Life series.