I'm Feeling Thirsty, But Why?

Water is essential to life. But how do people know when it is time to take a sip? Research hints that regions deep in the brain and sensors throughout the body let people know when they are dehydrated. Damage to brain areas involved in thirst and motivation can lead to conditions in which the body can no longer properly decide when it needs to take in more fluids.
This is a video from the 2023 Brain Awareness Video Contest.
Created by Yamini Kathuria.

[@-Kerstin]

Actually impressive how badly the audio volume seesaws