Red light vs infrared incandescent
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I am using latter now, much better than blue light but I still get a cortisol response. Is it because of it increasing metabolic needs or is the blue part of the wavelength responsible for this?
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@thyroidchor27 how do you determine this 'cortisol response'. A lot of people here just say stuff like this as if it's something you instantly feel. I get the whole idea of trusting your perception but there is also humility and patience
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@CO3 Your comment makes 0 sense. X made me feel Y. How do you know it was Y? Just be patient broooo
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@thyroidchor27 Are you American?
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@CO3 No Malay
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@thyroidchor27 Ah, well then there's a point in answering:
I think to immediately jump to knowing the hormonal changes in your body just on the basis of feelings is not the smartest way of going about it. The question was also a bit dumb, since Ray very explicitly recommended using 250W infrared bulbs, which is the reason you thought you were getting 'a cortisol reaction' in the first place most likely.
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@CO3 Im using 250 W. Come to think of it Its in my direct line of vision (and causes mild irritation) I might end up changing the location and see how it goes
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@thyroidchor27 Then what is the VS in the title referring to??
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@CO3 If anyone has tried them both and observed a stress reaction in one and not the other. I saw some in RPF claiming isolated red wavelengths making them stressed and others claiming it was only the 650 nm one and not the dual wavelengths of 650 and the IR wavelength (830 nm or something)
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@thyroidchor27 Tried what both?
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@CO3 Combo of 650 and 830 nm lamps instead of pure 650 nm or Incandescent
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If it’s day time you need blue light, it’s part of the day time sun. I know that when I keep my room dark in the middle of the day I get a stress response. My oura ring even measures “stressed” state from high heart rate. As soon as I go outside or open up the windows I get a feeling of calmness compared to being in the dark.
Since people recommend red light during the evenings i would assume it simulates darkness and similar body processes that happen in the dark like increased cortisol.
Some recommendations for daily indoor lighting I’ve heard is daylight spectrum, no flicker, LEDs. Then you can add an NIR incandescent and also a UV bulb to simulate sunlight. This way you’ll get the blue and UV for circadian rhythm and protective red/nir spectrum to remediate blue/uv skin/eye damage.
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@ora said in Red light vs infrared incandescent:
If it’s day time you need blue light,
Ray Peat on blue light:
"Full spectrum does stimulate, for example the ultraviolet stimulates your production of vitamin D, but ultraviolet and blue light are both toxic, for example to the retina. Blue light is destructive to the retina and one of the main things that causes blue light and ultraviolet light to be toxic are the polyunsaturated fatty acids, because they react with high energy radiation."
