• peterj74@lemmy.world
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    1 day ago

    That’s for very cold water or very large temp difference. As a rule, if it’s summer, splash some water on you first and go feet first, never head first.

    • carg@feddit.org
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      1 day ago

      It is about the difference of temperature, so, being under the sun for long time makes it more risky, even if the water is not so cold.

      I added another link that maybe explains it better.

      What you mention is also important, “entering water slowly…”