Sorry for the late reply. I mean that caffeine and sugar both have an energy upswing and an energy downswing associated with them. If you're already having iss

Sorry for the late reply. I mean that caffeine and sugar both have an energy upswing and an energy downswing associated with them. If you're already having issues with motivation, maybe even with lethargy, the downswing will potentially take you from minimally functional to useless. Any sleep or nutrition problems will also exaggerate this effect.