How Do You Know You’re Thirsty? 

Something inside is encouraging you to drink. Deep in your brain, structures with direct access to your bloodstream monitor and manage dehydration. When your body’s water balance is disrupted, these structures help set off a thirst control circuit, initiating your cravings for water. Once you reach water and down those first sips, you can begin to relieve yourself from your thirst.
Storyboard and animation produced by Midnight Snacks for BrainFacts.org.
Scripting by Chia-Yi Hou.
Editorial Production by Tristan Rivera and Juliet M. Beverly.
Scientific Review by Christopher A Zimmerman.