@andrewbar, A few years ago I almost bought a single lamp near infrared device made by SaunaSpace (https://sauna.space/). I couldn't make up my mind at the time but it's still on my radar as something I think can help with my neuropathy numbness or at least make me warm in the winter 🙂 They have a blog with some of the science info behind the near infrared technology that is interesting here - https://blog.sauna.space/.

The first time I read about it was through a video interview by Dr. Terry Wahls (https://terrywahls.com/about/about-terry-wahls/) when she had a video podcast with the developer/owner of SaunaSpace -- https://terrywahls.com/near-infrared-light-and-heat-natures-most-powerful-healing-detox-solution/. It's still a little more money than I can afford right now unless my ship comes in 😁