scienceshenanigans:

secernentea:

maxiesatanofficial:

anal-sneeze:

piratebay-premium:

ask-bot:

What is not a FUN fact?

Were all gonna die

Your eye has something called “immune privilege” This basically means that the outside of your eye prevents your immune system from knowing about the inside of your eye. If it didn’t, your immune system would destroy your eyes.

It’s true, also gonads and fetuses are immune privileged. The brain used to be considered but I think the consensus on that has changed…

You are correct, the brain is no longer considered immune privileged. The fetus isn’t really either. 

The immune system is basically Liam Neeson in Taken–a special set of skills and it WILL FIND ANTIGENS IF IT’S THE LAST THING IT EVER DOES