Showing posts with label Daily Life Uses. Show all posts
Showing posts with label Daily Life Uses. Show all posts

What happens to the food after it is swallowed

After the food has been chewed and mixed with saliva, it reaches the stomach through the oesophagus.The food is prepared for actual digestion in the small intestine, which is connected to the large intestine, and ends in the rectum. The undigested remains of the food and urine are excreted from the body. We can survive without water only for a few days, but the body can manage without food for quite some time. If the starvation goes on for a very long time, the body becomes weak and prone to diseases.
boy eating food

Why is drinking water important for humans?

The human body is made up of 80% water, which is present in blood and cells.Since we lose a lot of fluid through sweat, urine, and breath, we need to replenish it constantly. Drinking less water can cause immediate problems. The body cells become dry, and the skin wrinkles. Blood becomes thicker, and the heart has to make more effort to pump it through the body, oxygen is not supplied adequately to the organs. The heart and the brain react immediately to a lack of oxygen-they get damaged in just a few minutes.
Why is drinking water important for humans