AS i was in grade school growing up i was involved in countless sports but over the last year at school i retired them all for a new one. Drinking. My body went to shit. I havent really exercised in a year and i just went for a run after work today and it felt great. Im going to get into this. So yeah, who cares if its a km or a marathon, go giver'! You will defiantly thank yourself afterwards, and if you dont, you will kick yourself in your shin again.