Shivering
Shivering was a physiological response caused by a decrease in a lifeform's temperature. () It could also be a reaction to fear, or shock from blood loss. ()

In 2370, Deanna Troi began shivering while suffering from the early stages of Barclay's Protomorphosis Syndrome. She ordered the  computer to raise the temperature at least three times before Worf set it back to standard. ()

In 2372, following the birth of a reptohumanoid, it began to shiver. Tom Paris was uncertain whether newborns were supposed to shiver, and asked Neelix if it was normal. Neelix replied that he hadn't been around many newborns; Paris agreed. After the Talaxian wrapped it in his jacket, the hatchling stopped shivering. ()

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Physiology