ItÂ’s 5:30pm or so on a workday, youÂ’re about to head homeÂ… and wondering if you should exercise. Maybe youÂ’re already home and just want to cook dinner and watch some TV. Or maybe itÂ’s a weekend morning and you want to get some beers and watch football with your buddies and not worry about hitting the track or gym. Sometimes you actually have a real excuseÂ… maybe youÂ’re a little sick or are too sore from yesterdayÂ’s bench routine. Should you still go?