Good idea: drinking a 5 hour energy before a couple hours before a job interview OK idea: drinking half a normal 5 hour energy because you haven't had Caffeine for a couple of months. BAD idea: downing an extra strength 5 hour energy when you haven't had caffeine for 4 months. Your interview might go fine, but after, your optic nerve WILL be hyper-active causing your eyes to develop a photo sensitive state. #LFMF