Try It For Yourself
I’ve seen and heard loads of points of view on this topic, some cynical and some positive.
I will say that some people out there who are reluctant to try something until it’s 100% scientifically backed, instead of just trying it themselves to see what the response is… They’ll then use the lack of study backing as basis to disprove a method of therapy that is seemingly helping so many.
My advice: Just go and give it shot, see how your body feels and responds!
Speaking completely anecdotally, I think switching the shower from red to blue is far better for the body and is much better at mimicking the water temperatures our body should be exposed to.
Disclaimer: Please consult with your GP before trialing any alternative treatments.