the suprise challenge?
well... the way I see it, our health is controlled by lots of little habits, both good and bad
its hard to change all the habits at once, but maybe it would be fun to change or at least control just one of them every week
so each week , we have a little challenge, maybe a diet challenge, a fitness challenge? or maybe a well-being challenge
some of them would be easy for you , some would be hard, depending on your vices..
what about that for a game?