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Heat stroke is an acute temperature elevation caused by exposure to excessive heat, or combination of heat and humidity, that overwhelms the heat-regulating mechanisms of the body. The latter is a relatively rare side effect of many drugs, particularly those that affect the central nervous system .
The usual first suspect is heatstroke — critical increases in body temperature that cause organs to fail. When inner body temperature gets too hot, the body redirects blood flow toward the skin ...
Unfortunately, all that heat can do a number on your sleep. “Our body temperature naturally falls at night, which promotes good, quality sleep,” Dr. Beth Malow, director of the Vanderbilt ...
For the first time a new study describes the synchronized oscillations during sleep that power the brain’s glymphatic system to help remove ‘waste’ associated with neurodegenerative diseases ...
Muscles can also receive messages from the thermoregulatory center of the brain (the hypothalamus) to cause shivering. This increases heat production as respiration is an exothermic reaction in muscle cells. Shivering is more effective than exercise at producing heat because the animal (includes humans) remains still.
Heat syncope is fainting or dizziness as a result of overheating (syncope is the medical term for fainting). It is a type of heat illness. The basic symptom of heat syncope is fainting, with or without mental confusion. [1] Heat syncope is caused by peripheral vessel dilation, resulting in diminished blood flow to the brain and dehydration.
The body produces the stress hormone cortisol to cope with the stress excessive heat puts on the body, which can lead to anxiety and stress. ... It's unclear if extreme heat can be the cause of ...
Sweating allows the body to regulate its temperature. Sweating is controlled from a center in the preoptic and anterior regions of the brain's hypothalamus, where thermosensitive neurons are located. The heat-regulatory function of the hypothalamus is also affected by inputs from temperature receptors in the skin.