"Light and darkness have a huge impact on melatonin (N-acetyl-5-methyoxytriptamine).."
"If it’s light you have very little melatonin."
"This tells the body its day time and helps you wake up and increase alertness."
"If it is dark, melatonin levels rise and this tells your body it's time to sleep."
Summary of this simple science is - Your ally in sleep is melatonin, and it’s levels are inversely proportional to the exposure to light.
04 - "What's basically the point here?"
Going by the fact that now you understand that exposure to light and darkness has a direct impact on melatonin formation.
And melatonin plays an important role in defining your sleep.
So - if you can correlate these facts....
you can understand that why it is not in the best of your interests to be exposed to the
sources of light emitting from the devices that you own - mobile, tablet, TV - until at least a few hours from sleep.
It WILL impact your sleep as well as your circadian cycle.
05 - Road to a good sleep
Goes through a simple summary:
Circadian cycle is your⏰
Your sleep's ally is melatonin
Light exposure impacts both
Avoid devices before sleepin'
As Francesca Annis says it “The minute anyone’s getting anxious I say, you must eat and you must sleep. They’re the two vital elements for a healthy life.”