Exercise should be a part of everyone’s weekly regime. The positive effect of it are so numerous that anyone who has not got the exercise bug really is missing out. Not only does it improve the way you look physically and reduce instances of certain illnesses, but it also helps to make you happier and preserves your mental health. There are many reasons why exercise has this effect, and all of them mean that you should try, no matter how busy you are, to find time for exercise.