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The lungs have millions of tiny air sacs called alveoli. If they become damaged the body can never repair or replace them. Once the damage is done, it is that way for life.
Liver
To get rid of the carbon dioxide produced in the cells of your body, and to get new oxygen to transport to your cells.
The blood coming from your body tissues is low in oxygen (O2) and needs to be pumped to your lungs to reduce their content of carbon dioxide and pick up more oxygen. Once it has done that, it returns to the heart to be pumped throughout your body.
Organs that can be transplanted in the human body include the heart, lungs, liver, kidneys, pancreas, and intestines. These transplants are typically done to replace diseased or failing organs with healthy ones from a donor.
It is VERY dangerous to hold your breath for long periods of time. The human body can only last about 2 minutes without oxygen before making your lungs breathe in more. When you hold your breath, your heart uses the oxygen you used in your last breath. Once it's done, it needs more right away. Your body runs on oxygen like gas! The heart begins to notice that there is no more oxygen in your lungs, and takes action right away. It tells your lungs to open up the "air tube" and breathe more oxygen. The longer you hold your breathe, the more your heart panics and forces the lungs to breathe.Be smart and don't torture you're body.
It is done by veins and arteries (known as blood capilleries) vien take impure blood from different body parts to heart which then carry to lungs for purification and from lungs this pure blood carry again to hear which is pumped by arteries to the different body parts. So blood capelleries, and heart help in transporting the blood.
How the air is distributed in the lungs: measures the ability of the lungs to take in air
I don't see any health benefits no matter how it's done
The heart is responsible for supply of food and oxygen to all the cells in your body. The function is done through blood supply.
An anti aging vitamin will not help reverse damage to the human body. Nothing can reverse the damage you have done.
why would i answer this if im th one asking the question