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What is the role of oxygen in my body?

Dr. Vonda Wright, MD
Orthopedic Surgery
Oxygen is important to every cell in your body. Without it, your cells can’t make energy, and their metabolism is less effective. You switch from a highly efficient energy-making machine to being 16 times less efficient and generating a lot of lactic acid (which is what builds up in your muscles and makes you sore). Without sufficient oxygen, we perform less efficiently.
Pam Grout
Alternative & Complementary Medicine
Our bodies process three things: food, liquid, and oxygen. And while we might enjoy the food and the liquid more, it's the oxygen that actually provides the fuel that runs our body. Oxygen, through a process called oxidation, chemically changes food and liquid into energy. It's this "oxygen fire" that contracts our muscles, repairs our cells, feeds our brains, and even calms our nerves. Not only that, but breathing is our body's chief cleansing tool.

Every day, our body burns off some seven hundred billion old cells. These old cells are toxic and must be removed from our system. This is a normal, natural process of the body and nothing to worry about unless for some reason this toxic waste material is not eliminated at the same rate it's being produced. As long as we're breathing properly and getting plenty o f oxygen, there is sufficient energy and the waste is easily eliminated. The problem comes when we don't take in enough oxygen. You see, the body can store up food and liquid, but it can't store oxygen. Every minute that we are alive, we must continually provide our cells with stream of fresh oxygen.
Jumpstart Your Metabolism: How To Lose Weight By Changing The Way You Breathe

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.