Eli5 how can bloodloss cause vomiting

254 views

Im a blood donor. I have been donating for about 2 years now. Both the first and the last time i went, i threw up.
Now the cardiovascular system and the digestion system arent heavily related as far as im aware.
So how come the bloodloss causes naseau and vomiting?

In: 3

5 Answers

Anonymous 0 Comments

That might be related to (conscious/unconscious) nerves about the blood drawing procedure. Can’t think of any other reason.

You are viewing 1 out of 5 answers, click here to view all answers.