= Cold and heat adaptations in humans
{wiki=Cold_and_heat_adaptations_in_humans}
Cold and heat adaptations in humans refer to the physiological and behavioral changes that enable individuals to survive and function optimally in extreme temperatures. These adaptations can occur over short periods (acclimatization) or over long periods (genetic adaptation). \#\#\# Cold Adaptations 1. **Physiological Responses:** - **Vasoconstriction:** In response to cold, blood vessels constrict to reduce blood flow to the extremities, minimizing heat loss.
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