Why Near Infrared is better than FIR and US

NIR/ FIR full body significantly improved my vaso dilation .. Veins are looking thicker everywhere including my arms, legs and penis. Blood pressure slightly reduced, healing accelerated. It’s a pain to do this daily for 1 hour and I consistently did it since my last post (3-4 months, possibly more). I also use a small FIR pad during ADS. I see positive indicators, but it’s hard to come to any clear conclusions. I plan to keep doing NIR/FIR - it appears to have many health benefits.