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HEALTH & TCM NEWS

The tiny hypothalamus serves as the Health Maintenance Organization of the body, regulating its homeostasis, or stable state of equilibrium. The hypothalamus also generates behaviors involved in eating, drinking, general arousal, rage, aggression, embarrassment, escape from danger, pleasure and copulation. It does an amazing number of housekeeping chores for such a small piece of tissue. Its lateral and anterior parts seem to support activation of the parasympathetic nervous system: drop in blood pressure; slowing of pulse; and regulation of digestion, defecation, assimilation, and reproduction in such a way as to contribute on the whole to rest and recovery. The medial and posterior hypothalamus regulate activation: acceleration of pulse and breathing rates, high blood pressure, arousal, fear and anger. Stimulation of specific groups of cells in these areas can elicit pure behaviors. For example, rats placed in an experimental situation where they can press a lever to stimulate a pleasure center will do so to the exclusion of eating and drinking.

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