Water is a major need for all human being. It is a must for them to survive. Man need water to various actions inside the body. Usually a man need to drink about 2.4 liters of water everyday.
- Drinking water will be useful in following things in our body.
- Water cushions and lubricates joints
- nourishes and protects the brain, spinal cord and other tissues
- keeps the body's temperature normal
- Helps remove waste through perspiration, bowel movements and urination
However drinking lack of water of too much water not good for health.
Breathing air is also very much important to survive for human being. Not as drinking water breathing happens automatically. We even don't notice that we are breathing. By breathing air we take oxygen to our body.
When you inhale, a large muscle called the diaphragm flexes downward to help draw air into your lungs. Your lungs are one of the largest organs in your body. They work together with the rest of your respiratory system to keep your body's cells supplied with necessary oxygen.
Your cells need oxygen to convert the nutrients you eat into energy for your body. In the process of making that energy, some waste products are produced. One of the main waste products is a gas called carbon dioxide.
Your body needs to get rid of carbon dioxide, so what does it do? It breathes it out!
So without breathing you won't be able to read this answer. It is that important.
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