r/explainlikeimfive

Do internal organ texture, colour, shape size etc. differ depending on ancestry? If someone was only to look at a scan or an organ in isolation, would they be able to determine the ancestry of that person?

Edit: I wanted to put this link here that 2 commenters provided respectively, it’s a fascinating read:

Edit 2: I should have phrased it “ancestry” not “race.” To help stay on topic, kindly ask for no more “race is a social construct” replies 🫠🙏

Thanks so much for everyone’s thoughtful contributions, great reading everyone’s analyses xx

I'm wondering what is the mechanism behind this. I've noticed some of my old school friends who like to binge every weekend, already looking pretty rough in the face at 26-27 years old. Wrinkles, "old looking" skin etc. is what I'm talking about. Not even alcoholics but just guys who like to drink heavily on weekends.

What is it about alcohol that makes this happen?

I’ve read it helps with towing and steep hills, but what is actually happening and does it hurt the car by having it in L at any other time?