<p><img class="aligncenter size-medium" src="http://fitnessunit.co.uk/wp-content/uploads/2016/09/IMG_6781-1-700x500.jpg" width="700" height="500" /></p> <p>Fitness is the goal of many people. People spend millions of dollars a year on exercise products, gym memberships, dietary supplements and weight loss pills. All this, in...