I suppose you have vowed to lose some weight or get in shape as your new year resolution. I personally don't make resolutions since I almost always abandon them several months into the year. What I will not do is pick up any new nasty habits. I have a friend that never smoked in her life and took up using those nasty habit forming e cigarettes. She claims she is not hurting her body but I just tell her that the research into the things is not complete since they are so new.
Do yourself a favor, if you can't keep your own promises to yourself then at least don't go out of your way to ruin your health. Do start any new habit forming addictions that you know you will be paying for later in life.