Just curious

Can someone explain why everything looks different when I sit in a tub of really hot water? All the colors seem to shift—everything gets this weirdly bright, almost fluorescent look, and there’s this subtle purple tint to everything. You know what I mean? I can't quite put my finger on why it happens.

And did you get worked up before all that happened?🤷

Are you on drugs or something?😬

Well, I must say... I have experienced something remarkably similar myself when sitting in a sauna.
I had always operated under the assumption that this phenomenon was merely the result of rapid capillary dilation and a subsequent surge in blood flow. Along with these shifts in color, there is invariably a sense of lightheadedness, though it remains quite mild.
And before anyone asks, no, I am certainly not using any substances.😁

stormymaker24 said:uh, yeah... actually, I get something similar when I'm in a hot tub. I can't quite pin down how the colors shift, but they definitely do.
I always figured it was just my capillaries dilating and blood rushing too fast. And the dizziness? Yeah, that always happens too, though it's pretty mild.
I'm definitely not high. 😁

I'm with you on the dizziness. But the colors...🤷

Water changes its density based on temperature shifts, which directly impacts how light travels through it and affects the entire spectrum covered by the light source. You get varying levels of refraction, plus the object itself casts shadows and reflects its own color; when you factor in movement, you get constant fluctuations in refraction, causing colors to appear differently. It’s pure physics—specifically optics—not some medical issue.

☕.....hmm.....