1/On clotting
We have two immune systems. One, called the "innate" immune system we inherited from our reptile ancestors
The other, called the "adaptive" immune system is where things like antibodies and immunity (as in I got chickenpox and am now immune) comes from
Clotting is a function of the innate immune system. It's one of its "tools"
Other tools of the innate immune system are:
* Vomiting
* Diarrhea
* Sneezing
* Coughing
* Scarring
* Fever

