But part of the waste can be gotten rid of only by burning, and what we call burning is another name for combining with oxygen, or to use one word—oxidation;. Moreover, this is precisely the purpose of the carrying of oxygen by the little red blood cells from the lungs to the deeper parts of the body—to burn up, or oxidize, these waste materials which would otherwise poison our cells.
When they are burnt, or oxidized, they become almost harmless. While oxygen supports our life , and "oxidizes" or "burns" food to create energy and heat for our bodies, certain types of altered oxygen molecules called "Free Radicals" which are ever-present in our bodies, will damage our own cells and even our DNA, causing degeneration and diseases such as cancer.
A "radical" is an atom with an unbalanced electrical charge, and it will seek to steal electrons from other atoms - such as the atoms of our body cells! As Dr. Tai likes to say, the oxidation of cells by free radicals makes the human body "rust" like oxidation of metal makes it rust - and you know what rust does to the strength and natural beauty of the metal. Our bodies need the help of "antioxidants" to neutralize the oxidation properties of those invading free radicals. There are thousands of research papers that point to the production of free radicals as the primary cause of aging.
Free radicals are unstable molecules in the body created as part of the waste products or normal cellular metabolic activities. Recent research has given new hope to the task of rejuvenating and extending the lifespan of cells. This cellular rejuvenation , life extension, and improved vitality has been achieved using special antioxidants that can actually keep cells looking and acting younger - and may even reverse the aging process! The human body represents one of the most perfectly designed and coordinated structures.
However, all these structures are held in position by a dense network of systems which constantly work together to keep us going. The energy consumption for the brain to simply survive is 0.
When neurons in a particular region of the brain are highly active, they consume a great deal of oxygen, which results in recruitment of extra blood flow to that region. Neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease, motor neurone disease, and Huntington's disease are caused by the gradual death of individual neurons, leading to decrements in movement control, memory, and cognition.
Mental performance in the human body can be improved by "feeding" the brain with extra oxygen or glucose, according to research published today that could have implications for the treatment of dementia. It's well known that after about nine minutes of no oxygen, from drowning or whatever, you can kiss your brain good-bye.
Brain cells are extremely sensitive to oxygen deprivation and can begin to die within five minutes after oxygen supply has been cut off. Decrease of oxygen supply to the brain even though there is adequate blood flow caused by carbon monoxide poisoning, pollution in our cities, choking or suffocation can create conditions like tiredness, depression, irritability, poor judgment and health problems. The oxygen regimen improves alertness, reflexes, memory and apparently intelligence, and may offer the elderly a new weapon against senility and related disorders.
Alzheimer's and Parkinson's are reported to be responding to it. Their metabolic rate increases. They need more energy, so they produce more of the chemical energy molecule ATP. Oxygen reaches your muscles and other parts of the body by means of your bloodstream. Oxygen dissolves into the plasma, where most of it -- about While you're resting, only about 20 to 25 percent of the hemoglobin molecules give up their oxygen to your tissues. A lot of oxygen remains in the bloodstream in reserve.
As you begin to exercise, you use up these reserves, and oxygen-hemoglobin saturation in your bloodstream drops sharply.
You need to take in more oxygen to make up for this loss and fulfill your body's increased need for oxygen. Why is oxygen important in combustion? See all questions in The Importance of Oxygen. Impact of this question views around the world. You can reuse this answer Creative Commons License. Why is hemoglobin important to cells?
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