i'm not sure about that study/article. Colors that are red or shades of red typically make people hungry because of the resemblance to blood. Think red table cloths, signs - Mickey D
Final Fantasy VII - Trail of Blood [HQ]
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I also think it could be because of the virus.
There is a great possibility but we hope it wouldn't last that long 😌
I think it is probably a bad idea to go and collect naturally occurring biological weapons from various animals. And then put them in a bio-lab lol...
Unless they mean it but I'm sure they do and I just don't have proofs.
