Now I see the problem and confusion on your end...you don't think humans emit visible light.
Like I said, most people don't know and are fascinated, that is why I shared it...I don't find many who dispute it, but here are some articles about the studies that confirmed it:
Like I said, most people don't know and are fascinated, that is why I shared it...I don't find many who dispute it, but here are some articles about the studies that confirmed it:
https://www.sciencealert.com/you-can-t-see-it-but-humans-act...
https://www.nationalgeographic.com/science/phenomena/2009/07...
https://journals.plos.org/plosone/article?id=10.1371/journal...