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Thirst is the sensation of needing to drink water due to a lack of hydration in the body. It is regulated by the brain's hypothalamus, which detects changes in fluid levels and triggers thirst signals.
A region in the brain responsible for regulating various bodily functions, including thirst.
Osmoreceptors: Specialized cells located in the hypothalamus that detect changes in blood osmolarity and trigger thirst.
Dehydration: A state of inadequate fluid levels in the body, which can lead to symptoms such as thirst, dry mouth, and dizziness.