Our body temperature ranges between 36.3 and 37.1º C, and to maintain ourselves in these parameters there are several mechanisms, all of them regulated by the hypothalamus.
When the body temperature of the human body drops or rises, the region of the brain called the hypothalamus is activated . This brain area acts as a kind of thermostat, and when it senses that the temperature is not the desired one, it activates a series of processes so that it recovers.
How do you get the data that the internal heat is not adequate? By multiple receptors, such as certain neurons that are sensitive to thermal or skin changes, from where it receives more information thanks to the sensory cells it has.
If the hypothalamus senses that the internal heat has decreased, it sends nerve signals to the motor neurons that supply muscle fibers . Its activation causes the jolts that characterize the tremor.
The jaw muscles also start to shake, causing chattering . When this small tremor occurs, the body consumes energy , and that consumption is transformed into heat.
