When somebody is suffering from fever ,Why does 1 feel cold rather his body temperature is high????? ?
Fever also known as pyrexia, or a febrile response, is a frequent medical sign that describes an increase in internal body temperature to levels above normal. Fever is not a disease but a symptom of a disease. Fever differs from hyperthermia. Hyperthermia is an increase in body temperature over the body’s thermoregulatory set-point, due to excessive heat production or insufficient thermoregulation, or both. Temperature is regulated in the hypothalamus ( brain stem) , in response to prostaglandin E2 (PGE2). PGE2 release, in turn, comes from a trigger, a pyrogen. The hypothalamus generates a response back to the rest of the body, making it increase the temperature set-point. The elevation in thermoregulatory set-point means that the previous “normal body temperature” is considered hypothermic, and effector mechanisms kick in. The person who is developing the fever has a cold sensation, and an increase in heart rate, muscle tone and shivering attempt to counteract the perceived hypothermi
