Teeth Whitening: Best Teeth Whitening Products Options and Costs. As a Cosmetic Dentist, itâs tricky helping people wade through the many Teeth Whitening products and options available. Nowadays, everyone wants whiter teeth, and that attracts âentrepreneurial typesâ ready to exploit the high demand. What Iâm saying is buyer beware.
What happens here is that your cells run out of oxygen, you run out of energy, and your muscles feel sore due to the lactic acid dumped into the muscle tissues by your cells. What the body's cells are pretty convincingly trying to tell you here is- stop exercising or we will die.
How it works: The process of oxygen getting into the blood goes like this. First we inhale air with oxygen in it. Little pockets in the lung called alveoli fill with the air and the oxygen diffuses into capillaries. This oxygenated blood then goes back to the heart where it is pumped around to the rest of the body.