What makes us throw up when we are ill?

when we are ill, our body goes through stress and when the body is stressed, our stomach releases more hydrochloric acid (gastric juice) because this is suppose to make us feel more hungry in order for us to take in more food to help us fight sickness however it is ironic that when we are sick we also lose appetite and just want to rest so when there is increased hydrochloric acid and there isn't enough food, our stomach lining is irritated and sends signal to the brain for us to vomit it out because it is detected by the body as harmful.

The body is trying to get rid of anything that irritates the stomach or if the stomach/intestines are infected...the flu of course is a virus that irritates the stomach. Your stomach doesn't control if you vomit or not..theres a location in your brain called the vomiting control that obviously controls when you vomit.

Ur obssesed with throwin up,aint ya pal.Ur name and ur question give it away dude.A word 2 the wise but not not so wise,"If u get out and smell the flowers u will forget about throwin up and find somethin less gross 2 talk about u sicko".Well thats all I hav 2 say.Peace.

my strength and my will