homeostasis
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/ˌhəʊmiəˈsteɪsɪs/
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/ˌhəʊmiəˈsteɪsɪs/
Homeostasis is like the body's system for keeping things stable and balanced inside, even when things outside change, like the temperature.
Our bodies maintain homeostasis by sweating when it's hot and shivering when it's cold.