As we go through life the amount of sleep that we need changes. Although with our high tech and fast paced lifestyles we often put off sleep. Which leaves us lacking in more than just energy. Just how much sleep do we really need?
Your energy, memory and concentration are all influenced by the amount of sleep that you get. As well as your fitness and preformance. Getting enough sleep also helps with an injury's recovery time. Sleep is one of the most important functions of our daily lives that we tend to neglet due to a lack of understanding it's real importance and function. It is just as important as breathing.
As such it is important to combat poor quality sleep. While we sleep it gives our body the chance to boost it's motabalisim. It also helps the brain to store and sort through all the information it has taken in during the day. It also helps our bodies to recover after exercise. These functions are all regulated by the bodies natural internal clock, the circadium rhythem.
The light in our enviroment sets the circadium rhythem which tells us when to sleep and when to wake up. Which in the caveman times worked perfectly as there was no artificial light to disrupt the circadium rhythem. Then we discovered fire, the first form of artifical light. Today we are surrounded by many forms of artifical lights such as televisions, cellphones, computers and lightbulbs. All of which contain blue light.
When your eyes pick up blue light after sunset your body holds off on producing melatonin since it is decieved in believing that it is still day time. It takes two hours for your body to produce melatonin after the retina stops recieving exposure to blue light. It is the absense of blue light that allows your body to prepare for the sleep process.
- Young children need 10-11 hours of sleep a night.
- pre teens and teen agers require 9-10 hours of sleep.
- An adult requires 7-8 hours of sleep.
So if you are exposed to blue light just before going to sleep you are robbed of 2 hours of your quality sleep? If you look at your phone or even just turn off your light just before you go to sleep your body still needs that two hours to produce the melatonin required. Thus from the time you close your eyes to when you wake up, you are short of two hours of much needed sleep.