Answer:
It will be endorphins
Explanation:
any of a group of hormones secreted within the brain and nervous system and having a number of physiological functions. They are peptides which activate the body's opiate receptors, causing an analgesic effect.
The right side of your heart receives oxygen-poor blood from your veins and pumps it to your lungs, where it picks up oxygen and gets rid of carbon dioxide. The left side of your heart receives oxygen-rich blood from your lungs and pumps it through your arteries to the rest of your body.
If there is an increase in carbon dioxide in the blood it means that the cells would increasingly take up oxygen. so then lactic acid would be produced. Also the person that has increase in carbon dioxide in blood will die. if the level of carbon dioxide in blood increases the PH decreases. when the levels of carbon dioxide increase the blood becomes more acidic.
Hope this helps:)
