A pea-sized region of the brain serves as the body’s primary thermostat
A tiny, pea-sized region at the base of the brain called the hypothalamus acts as the body's master thermostat and primary regulator of survival instincts.
The hypothalamus integrates twenty distinct nuclei to govern essential functions such as hunger, thirst, and body temperature. Its osmoreceptors are so sensitive they can detect a mere 1% rise in plasma salt concentration, immediately triggering the release of antidiuretic hormone to conserve water.
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