@masterpopo and @GeoLad I guess to whichever you are comfortable. They are just almost identical to each other. it’s just that IRL penetrates deeper and produces body heat that causes the person to sweat.
Yes, One study found that just four minutes of exposure to 635nm red light caused 80% of lipids to be released from fat cells, and by six minutes, almost all of the fat had been released. Scientists theorize that red light causes temporary pores to form in fat cells, which is what allows lipids to leak out.