eli5: What bodily mechanisms are responsible for keeping our body warm?

Question

This can also include the mechanisms for causing or body to warm up

In: Biology

Answer 1

This a rather general statement because the nitty gritty of biochemistry is a pain to explain.

When feeling cold, the brain’s thermoregulator, the hypothalamus will signal muscle groups to start shivering to create body heat. This process entails consuming energy and calories.

Conversely, upon feeling warmer than usual, the sweat glands will start secreting sweat to wick away body heat.