Not sure about this study but my experiences are similar to yours. I switched away from the hot showers completely about 2 months ago for three reasons. I star

Not sure about this study but my experiences are similar to yours. I switched away from the hot showers completely about 2 months ago for three reasons. I started getting itchy skin and no amount of moisturizer helped. Now I need very little moisturizer. I think is is a gain. Cold water immersion also helped me with fidgety legs. I tried with simple 10 seconds of cold shower at the end of bath but then liked it and increased it to 10 minutes of immersion on good days. After a stressful day at office, a cold shower helps with sleep.