Sleep

Sleep often eludes us. We don't often think about it, but we are like cyborgs, needing "sleep batteries" to recharge. What exactly do we need sleep for?
Well, during sleep, the growth hormone is excreted. Therefore, rest is essential for young ones and important for us adults to keep our skin and muscle tone even.
What about dreams? Scientists hypothesize that dreams are the mind's way of organizing the days events. I know I always feel more rested after a night of sweet, sweet dreams.
So sleep is important to the brain and body and we know this mostly by what happens to us when the brain and body don't get enough. We become cranky and irratable and begin to make mistakes.
I like to think of sleep as our connection with the unconscious and spiritual world. Could be, could not, only time and research can tell.