What are effects of dehydration?

You will want more water, which means your concentration will be weaker as well as your strength and stamina. You may start to have headache and experience dizziness, your body temperature will increase. After a long period of time without water, maybe a few days, you will start to experience these symptoms, seizures, swelling of the brain, kidney failure, shock, coma, or death.

the answer is nerve impulses.

good