It is an indisputable law of physics that an object in motion will stay in motion. The same is true with fitness. The more days you have under your belt, the easier it is to get up and go again. If you are serious about making a real change in your lifestyle for 2014, you’ll have a better chance of doing so if you hit the ground running. By the time everyone else is ready to start fresh, you will be in mid-season form.
1. Because you can.
There will never be a better reason to exercise than this. You are a living, breathing, functioning human being with no excuses; the sooner you get out there and start acting like it the better. Your body has no concept of dates or times, so the idea that it will be easier for you to start training January 1st is plainly ridiculous. All you are doing is putting it off. Make your resolution, do your research, and get excited about starting as soon as possible.