The body of the average adult has i

The body of the average adult has in storage enough food to last for several weeks. It has enough water to last for several days. At any one time, however, the body has only enough oxygen stored in the lungs to last for 3 or 4 minutes! Fortunately, it is not difficult for us to acquire the oxygen we need. As a rule, we need only to breathe in the air around us for an adequate supply. The amount of oxygen needed at any one time depends upon what the person is doing. As the activities of the body increases, the use of oxygen also increases. The person begins to breathe deeper and faster to bring more oxygen into the lungs. More red cells are thrown into the bloodstream to aid in carrying the added supply of oxygen. Blood from the stomach and the intestines is transferred into the blood vessels of the muscles that are at work. This blood helps to transfer the added oxygen to the parts of the body that need it.It is best not to exercise strenuously right after eating. If blood is transferred from the stomach right after a meal, digestion of food will be hampered.

Kết quả (Anh) 2:

The body of the average adult has enough food in storage to last for weeks vài. It has enough water to last for days vài. At any one time, tuy nhiên, the body has only enough oxygen stored in the Lungs to last for 3 or 4 minutes! Fortunately, it is not difficult for us to Acquire the oxygen We Need. As a rule, We Need to breathe only in the air around us for an adequate supply. The amount of oxygen needed at any one time depends upon what the person is doing. As the Activities of the body increases, dùng oxygen am also increases. The person begins to breathe deeper and bring more oxygen to Faster Into the Lungs. More red cells are thrown Into the bloodstream to aid in the added supply of oxygen Carrying. Blood from the stomach and the intestines is truyền blood vào được VESSELS of the muscles at work. This blood helps to transfer the added oxygen to the parts of the body need it.It is best có not to exercise strenuously right after eating. If blood is Transferred from the right after a meal stomach, digestion of food Will Be hampered.