Do you know ?

• When we suddenly enter the room from sunlight, it appears dark. Why?

The pupil in the eyes allows to enter the necessary quantity of light needed for us. It expands and contracts accordingly. In bright sunlight the pupil becomes smaller and when we suddenly enter the room, the smaller pupil can’t send necessary amount of light. So, till the pupil becomes bigger the room appears dark and we can’t see clearly.

• Sometimes our stomach produces some sound. Why?

Generally  our stomach produces some sound but we don’t hear because it is low. During the process of digestion food moves in our stomach and intestine. Sound is produced when food moves from stomach to intestine. Besides this, air enters the stomach with food or for any other reasons. This movement also produces sound. If this process is slow or fast, the sound is produced similarly and we hear the sound.

• We feel  lazy after we have meal. Why?

Digestive process in necessary after we have food. Different organs work more during this time. So, they need extra blood. At this time some parts of the blood is supplied to these digestive organs instead of going to brain. Deficiency of blood in brain makes us lazy.

• Before eating we put a circular ring of water around our plates and bowls and a little amount of food is placed at a side. Why?

There are many tiny germs around us which we can’t see and small insects are on the ground. When we put water around our food they can’t cross the water and come ahead. Similarly, insects inside the ring and germs in the air hover on the food placed at the side and the hot food stuff in the plate remain safe.

• Our head moves sideways and become loose when we feel sleepy. Why?

Our body becomes weary when we are in half-sleep. At this stage the power of controlling of the muscles becomes feeble. Therefore the muscles which help keeping the heavy head erect loose their control and can’t work. So our head moves side ways.

• Babies sleep fast when we keep them in a cot and swing. Why?

Music, sucking or moving of the cot etc. repeated activities play a positive effect in child’s breathing. While baby sleeps in a cot the way it moves, the process of breathing increases. Babies should breath faster when there is harmony between the breathing and the movement of the cot. The baby finds itself in peace and sleeps. Therefore the baby sleeps quickly in a cot.

• We use pillow while sleeping. Why?

The muscles at the neck stretch while we sleep. To remove the stress of the stretch a suitable pillow is needed. If the muscles at neck stretch the apophylias joint is affected. Therefore we use pillow while sleeping.