Good point. Your body needs what it needs. You can self-medicate with caffeine or other stimulants to try and hack the system, but they end up cutting in to y

Good point. Your body needs what it needs. You can self-medicate with caffeine or other stimulants to try and hack the system, but they end up cutting in to your next nights sleep. As an ER nurse, I've worked nights for 14 years. And, for the last 5, I've gone completely caffeine free. I've felt better than I have in years. It's amazing how easy it is to get into a (sleep deprivation -> stimulant -> sleep deprivation) cycle. Why? Because caffeine stays in your system for 24-26 hours. So, that cup of coffee that you had yesterday is still in your system when you go to bed the next night. And, the caffeine is stimulating you while you sleep preventing you from getting the normal cycles/amounts of the stages of sleep that you'd be in normally. It takes a few weeks to come down off the caffeine addiction, but after you do, you feel so much better.