[disturbed]

Thanks. Several people recommended cold showers or swimming in cold water. Guess it doesn’t hurt to try.

[temo4ka]

You might find Wim Hof method useful then. https://www.wimhofmethod.com/

[craigr1972]

Please do be physically safe if you do swim. Swim with someone, make it short, and read up on cold shock and "after drop".