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It may sound a bit strange but shivering is a survival mechanism designed to prevent the body from losing too much heat. Let’s know why our body starts shivering when it gets cold.
Shivering in winter: The weather has completely changed and the cold has started showing its strength. We know that when it gets cold, our body starts shivering automatically. Have you ever wondered why this happens? Let us know why this happens and what is the reason behind it.
Whenever the temperature drops rapidly, the body goes into self-defense mode and starts shivering. Although it may sound a little strange, shivering is a survival mechanism designed to prevent the body from losing too much heat. Let’s know why our body starts shivering when it gets cold.
The hypothalamus constantly monitors body temperature. As soon as it senses the slightest drop, it perceives it as a threat and activates the heat-defense response. As soon as the brain signals that the body’s internal heat is decreasing, the body begins to shiver.
Tremors occur automatically as the brain sends rapid signals to the muscles to contract and relax. We cannot control it; This is the body’s automatic process of warming itself.
Each muscle contraction expends energy and releases heat. When hundreds of muscles begin to vibrate simultaneously, heat production increases rapidly, helping the body restore lost heat.
The heat generated by shivering helps vital organs maintain their temperature. This reduces the risk of hypothermia.
Tremors, stiffness and restlessness are just side effects of overworked muscles. Although it may seem intense, shivering is a sign that the body is fighting the cold.
As the body warms, the hypothalamus signals the muscles to stop shivering. Once the threat is over, the body returns to normal functioning.
December 05, 2025 2:35 PM IST
Why does the body shiver automatically when it gets cold? Read here the science behind shivering