Why Do We Shiver?

The video explains how the body reacts to cold weather by maintaining a stable internal temperature through mechanisms like shivering. It highlights the importance of wearing appropriate clothing to trap heat and prevent heat loss. The shivering reflex is described as an involuntary response that helps generate heat by muscle movement. The video also emphasizes the role of layers and accessories like mittens and hats in keeping warm.

What is the primary function of shivering in the human body?

• To cool down the body

• To generate heat and keep the body warm

• To help with digestion

• To signal hunger

How does wearing a jacket help in maintaining body temperature?

• It reduces body temperature

• It increases blood circulation

• It traps heat between the body and the clothing

• It absorbs heat from the environment

What triggers the shivering reflex in the body?

• An increase in heart rate

• A drop in blood sugar levels

• A message from the brain indicating cold

• A conscious decision to move

What happens to muscles during shivering?

• They become rigid

• They stop moving

• They contract and relax rapidly

• They relax completely

Which of the following is a recommended way to prevent shivering?

• Wearing multiple layers of clothing

• Eating spicy food

• Drinking cold water

• Exercising in cold weather