How to keep fit? Eating healthy foods and balancing it with the right amount of is extremely important. To follow this step you will have to make yourself as stubborn as you can. You need to let go of junk, alcohol, etc. Try to eat as much as fruits and as possible. Such food makes you feel light and active! early in the morning and start with a good stretch! A or a run will not only make you physically healthy and active, but also make you more flexible and make your mind agile.