Using a new plethysmographic technique to measure peripheral arterial tone (PAT), we report here that REM sleep in humans is associated with considerable peripheral vasoconstriction. The apparatus ...

Researchers have found cold-water acclimation affects cellular function, upregulating protective mechanisms that could ...

Cardiac events tend to surge in winter, according to experts. While heart attack cases are reported throughout the year, the cold weather can heighten the possibility of heart attacks, especially ...

Ways in which the body can increase temperature are: Vasoconstriction - blood vessels ... Negative feedback control is the mechanism used to control the temperature of the body.