Hot showers vs Cold showers?

So, earlier today I had a debate with a friend of mine about this. He thinks cold showers are unnecessary and dangerous, because of the temperature drop, and the cold shock response. Which is understandable, but as a cold shower lover, I kinda started a debate, because I feel like they’re good for like getting better sleep, relieving pain and reducing inflammation. Am I wrong?
Hot showers vs Cold showers?
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