I've found that the type of exercise matters A LOT for me. If I'm tired and I can get away to lift for a half hour or a little more, I come back to whatever I

I've found that the type of exercise matters A LOT for me. If I'm tired and I can get away to lift for a half hour or a little more, I come back to whatever I was doing re-energized and feeling great. Aerobic exercise leaves even more drained and desperately wanting sleep or, at the very least, caffeine.