Researchers have found that cold water immersion therapy might help with more than just sore muscles. For example, one study found that taking a cold shower may help people with rheumatoid arthritis feel less pain and swelling.
Other research has shown that it may help the immune system, and it may even be good for your mental health.
"This is because being in cold water causes a long-lasting release of dopamine, which can improve your mood, help you focus, make you more alert, and get you ready to face the day.
Even though there are some studies on cold water immersion, they don't show that it's better than other ways to heal.
In fact, some research has made people wonder if jumping into cold water right after resistance training could be bad for your muscle gains.
if these are your worries, you should do cold plunging after the anabolic window.
Aim for a few hours or even the next day after that workout, or even the day after that, so as not to mess up the adaptations to hypertrophy."