I don't think it can be harmful.� If, of course, a person keeps his head in icy water for a long time, then the risk of a number of diseases such as meningitis, runny nose, various other inflammations and hypothermia increases. But I don't think you're forced to keep your head in cold water for hours.� If you look from a positive point of view, it is even useful, as for example a contrast shower is good for the scalp and has a positive effect on hair growth. Also, cold water allows the hair scales to become more elastic, which creates the effect of smooth hair.� I would recommend simply rinsing your hair and head with cool water after taking a shower.
I don't think it can be harmful.�
If, of course, a person keeps his head in icy water for a long time, then the risk of a number of diseases such as meningitis, runny nose, various other inflammations and hypothermia increases. But I don't think you're forced to keep your head in cold water for hours.�
If you look from a positive point of view, it is even useful, as for example a contrast shower is good for the scalp and has a positive effect on hair growth. Also, cold water allows the hair scales to become more elastic, which creates the effect of smooth hair.�
I would recommend simply rinsing your hair and head with cool water after taking a shower.