Most of the resolutions fail because they are too abstract and aren't backed by concrete steps that can be turned into processed habits.

From all indications, it seems most resolutions are stated based on formalities, hence, the reason no intentional efforts are put in place to make it a reality.

I stopped making yearly resolutions and resolved to making the person I am better each day.

But most of us do so little, that we end up being tired, so our body says "you need to recover because you are tired" without considering why the body is tired. We have evolved to rest when tired, but we haven't evolved to get tired by doing nothing. But it is doing nothing that is making many of us tired.

Funny enough or perhaps, sadly true, the more we keep resting for inactivity the more tired we become, and overtime it grows into laziness. People don't want to go through the pain of making sacrifice to achieve a better healthy life. Too bad.