What does «tiritar de frío» mean in Spanish?
- Expression used to say that someone is shivering from too much cold. Shivering is one of the many bodily functions (homeostatic) that the brain regulates automatically without our conscious thought. In humans, when the body temperature drops below 35 or 36°C (depending on one's natural temperature), shivering begins. Shivering is a way of producing heat in the skeletal muscles; this requires a lot of energy and is normally the last strategy the body resorts to in order to maintain its internal temperature in a very cold environment.
Examples of use in Spanish: "dame una frazada, estoy tiritando de frío".