Exercise is essential for mind, body and (21) ________. It's one of the best ways to (22) ________ when all around you everything seems more and more unbalanced and the world becomes ever more fast and (23) ________.

Don't groan because this is yet another article about (24) ________. The reason why there are so many is that it is ' (25) ________ good for you. There are plenty of reasons why you should exercise and very few — for most of us — why you shouldn't. Exercise improves muscle (26) ________ and provides quick changes in (27) ________. It improves muscle power and promotes good posture — the way in which you hold your body when sitting or standing. It helps (28) ________ muscle imbalances which can lead to injuries. It provides quick improvement in (29) ________ such as thighs, stomach and upper arms. It improves the condition of the heart and lungs and (30) ________.