TIL humans have a faint glow that’s visible to certain cameras. Humans emit a very low level of light due to metabolic processes, but it’s about 1,000 times weaker than what the human eye can detect.

https://www.theguardian.com/science/blog/2009/jul/17/human-bioluminescence
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1gk4fc0/til_humans_have_a_faint_glow_thats_visible_to/