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Read on to learn all about why being fit is such an important part of your health and well-being, now and throughout your entire life. And that’s sort of the point, according to exercise experts. Fitness doesn’t have to mean that you’re an ultra-marathoner or that you can perform one pull-up or one hundred. High intensity interval training can produce amazing results. A man and a woman participating in high intensity events during a fitness competition. Minutes Of Walking A Day Can Be A Game Changer For People With Oa Exercise burns fat, builds muscle, lowers cholesterol, eases stress and anxiety, lets us sleep restfully. In this guide, we match resources to your exercise needs -- at every fitness level. You do not have to kill yourself from running, jogging, etc., but you should have some sort of moderate physical activity in your everyday life. If you're looking to shed a few pounds fast, do a higher-level intensity workout. Or, you can jog and set certain intervals to sprint