Different Sunlight Frequencies Work Together

How different sunlight frequencies mitigate each other, work with each other to do different things;

At sunrise, we have no ultraviolet light. It's predominantly red.

There's some blue there. It activates our stress response. It activates cortisol, ACTH, POMC, sex hormones. TSH (thyroid).

That sunrise is also preparing our skin for UVA light.

And UVA light actually turns off those hormones. Blue light keeps us pumping them. So they work together, they mitigate each other.

But at the same time, the infrared that's present in the sunlight whenever the sun is above the horizon - all the time - it kind of counteracts the negative effects of both UVA and blue.

Without the work of the infrared and red light, UVA would make us release too much nitric oxide. But also blue without the red would make us release too many Reactive Oxygen Species - free radicals.