There are many reasons but as you see in the pics below, UV light power vanishes and we see a #bluelight SPIKE in the sun's spectral output. Color temperature also spikes at this time too.
The vanishing of UV light along with the...
increase in blue light along with a color temperature spike triggers photoreceptor cells in your skin and eyes (cornea and retina) called melanopsin and neuropsin. Neuropsin is a UVA photoreceptor. It senses the diminishing UV light and alerts your body clocks that night is...
coming. Melanopsin pays attention to this brightening/dimming of light especially light in the blue light range (480nm peak). As this kind of light at sunset bursts and then dims quickly after sunset, melanopsin sends a signal through your main body clock called the...
Suprachiasmatic Nucleus to your pineal gland to activate #melatonin release over the next few hours. The amount of melatonin released depends on not only NOT seeing anymore blue light for the rest of the night but also the amount of melatonin made/regenerated in your eye from...
sunlight you see in the MORNING.
Melatonin is NOT just for sleep or just made in the pineal gland. Think of it as health food for your #Mitochondria as it ultimately makes them healthier and more efficient.
Also, as UV light vanishes later in the day and...
around sunset, infrared and #redlight remain present.
These wavelengths also help to repair skin damage or burn that occurred from stronger UV light earlier in the day.
normal cell with good mitochondria #health shown by the red dots.
In the center we see what happens to the cell's mitochondria when #bluelight shines down on it. The blue light destroys the red dots. Mitochondrial mass murder.
On the right we see what happens when...
near infrared light (NIR) comes to your mitochondria's rescue and is added to the blue light shining on your mitochondria as it does in natural sunlight but does not in artificial light. Your mitochondria remain significantly more intact and healthy.
First you have to figure out which time you are following then you have to do your best to make a change so that you are more in-sync with the time your biology was built to follow.
As we now know, there are at least three different...
time zones that effect your health.
1) Social Time - The manmade time you find in your exact location on your watches, iphones, tvs, clocks and computers. This is the least healthy of all the times to keep.
2) Solar Time - Time in your specific location that is set by the sun and derived from geophysical light/dark signals. This is the time your biology is built to take cues from. This is the most important to your health of all times to follow.