How our bodies keep warm

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Q1: What are some ways our bodies use to keep warm?

[Answer]

People, and all other living things, spend much of their time keeping warm. For humans, our bodies need to stay close to 37°C.

The main way we control temperature is through the blood. When we are cold, less blood flows to the skin; when we are hot, more of it flows to the skin.

We also use sweating and shivering to control temperature.