Niponwave

Winter is here… one can already feel the chill in air. It’s only early November and already I am finding it quite difficult to get up from bed in the morning…

You must have noticed how you shiver when you feel cold and how your body hairs stand up. Know why it happens? Well, here you go… Shivering is a reflex action of the body to generate heat. When you shake, mechanical energy is spent and heat is produced. This helps the body to adjust to the cold surrounding. It’s automatic, you see… Coming to standing of body hairs or piloerection, it is also an adjustment to cope with cold. As the hairs become erect, they can trap more air in between. Thus a film of air clings to our body that conserves heat. ( Air is a bad conductor of heat, hope you remember this high school funda)