A Necessity

A necessity is something that everyone needs. Something that is absolutely essential to life. When you break it down to the bare minimum you consider air, food, shelter, and maybe a few other things. Now, I'm not talking about a cell phone or a computer. I'm not even talking about toilet paper. I'm talking about the bare essentials.
Can you think of something other than the bare essentials that every human being needs besides air, food and shelter? That pretty much covers it, right? Shelter protects your body from the elements which is essential at keeping the body's physiology functioning. With food your body can do acquire all the nutrients that your body cannot make itself. Air keeps oxygen in our blood to provide energy for all the basic functions of the body.
Can you think of anything else?
I can think of something. It's sleep. Sleep is something that every person needs. It's like that cold drink of iced tea on a very hot day. It is a recharge for your batteries so that you are ready to take the bull by the horns the next day.
Imagine never sleeping again. It wouldn't work. Your body would eventually shut down. What is this periodic state of unconsciousness that we require? Why is it so essential to our lives, but we never think of it? Why are we diurnal instead of nocturnal?
All the answers to these questions are quite simple really.
Just like air, food and shelter is an essential part of our lives, so is sleep. It's one of those necessities that are essential to live.
As a side note...this link is actually a video that is displayed as art in the National Gallery in London England. David Beckham was filmed taking a nap and that is his commemoration to the National Gallery. As I was standing in front of this in London, I actually was able to appreciate it as art. I am now sharing it with you.
http://www.youtube.com/watch?v=z0UEuuYuNDo