Why do you shiver when you are cold.?

If you are exposed to a foggy place in the early morning, or got wet in a heavy rain, you may wonder why you experience a special sensation called shivering. this is actually a trick of your body. When you are cold, you need to warm up. And shivering is a form of movement that happens automatically, and helps generate heat.

When muscles contract and relax, they produce heat.This is why you get hot when you run or play games. Sometimes, however, your body gets cold, and your muscles act automatically. They contract and relax rapidly, producing the movement, we call the shivering. In this way, they generate some heat to help to some heat to overcome the effects of the cold.

Sometimes shivering is not enough to warm you up properly. This is why you often jump up and down and flap your arms on cold days. This extra use of muscles produce extra heat. Exposure to cold conditions can be very dangerous to some people. They may suffer from hypothermia, which is a kind of drowsiness and sometimes death. Didn't that thought give you the shivers......??