As others have said it's a festive time of year and for me personally, drinking ruins my constitution for things like weight training, studying etc. It makes me

As others have said it's a festive time of year and for me personally, drinking ruins my constitution for things like weight training, studying etc. It makes me more tired and from what I've read, dehydrates the body making injury more likely. So having a "dry january" helps me reset everything and get back on track, which in turns motivates me to be more healthy into the new year. I also think drinking is a useful social lubricant, but I do see myself quitting nearly all together as I get older. It might sound strange but dry January is "practice" for me.