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.
Save 40% when you subscribe to BBC Focus Magazine today*. Our blood has evolved to capture the oxygen we breathe in and bind it safely to the transport molecule called haemoglobin. If you breathe air with a much higher than normal O2 concentration, the oxygen in the lungs overwhelms the blood's ability to carry it away. The result is that free oxygen binds to the surface proteins of the lungs, interferes with the operation of the central nervous system and also attacks the retina.