You were out on a date, or out with a friend. By all accounts, it seemed as though you had a good night. You felt a bit tired, but you figured it must be due to the demands placed on you at work. The next morning, you open your eyes and immediately sense something is wrong. You feel as though someone hit you in the head with a baseball bat. You try to get out of bed, but can’t. Your head feels heavy, not quite a headache, it's a feeling that drops you back onto your pillow for some much-needed rest. This my dear friends, is an energy hangover, and it is not fun.