Living beings emit a faint light that extinguishes upon death, study

> UPE varied depending on exposure to stress factors like temperature changes, injury and chemical treatments

I haven’t read the study but I studied remote sensing in undergrad and one thing we worked on was how to detect the stress of an agricultural crop from multispectral satellite data. You can quite clearly detect how plants are handling temperature, pest damage, drought conditions, largely based on their near- and middle-infrared responses. On the surface this sounds a lot like that, which I think is neat.

UPE, also known as biophoton emission, is a spontaneous release of extremely low-intensity light that is invisible to the human eye and falls within the spectral range of 200–1,000 nm

Part of that is in the infrared spectrum, and the other end in UV (including A, B, and C). Isn't this just https://en.wikipedia.org/wiki/Black-body_radiation that everything with a non-zero absolute temperature emits? Dead beings would obviously cool down and reduce the amount of radiation they emit.

Anyone who has seen the movie Predator already knows this ;)

So we do have an "aura"?? Magical!

Yes, we know.

It is also brighter the further you die from home.