Temperature regulation is the process by which living organisms maintain their internal body temperature within a certain range, despite changes in the external environment. This is crucial for proper functioning of biological systems, as extreme temperatures can disrupt metabolic processes. Organisms can be classified as endotherms, which generate heat internally, or ectotherms, which rely on external sources for warmth. In humans, temperature regulation is primarily managed by the hypothalamus, a part of the brain that detects changes in body temperature. When the body gets too hot, mechanisms like sweating and increased blood flow to the skin help cool it down. Conversely, when it’s too cold, shivering and reduced blood flow to the skin help conserve heat.