[taxicabjesus]

This is an important story. A lot of people are over-oxygenated by their health care professionals.

A common way that people induce 'too much oxygen' is by hyperventilating. One effect of hyperventilating is that it shrinks the peripheral arteries - in the brain, fingers, toes.

The simplest treatment for hyperventilation is recycling exhaled carbon dioxide with a paper bag.