Carbon Monoxide has a 250 times higher affinity to hemoglobin than Oxygen. CO poisoning can be fatal, and when poisoning is survived it takes about 6 hours to remove half the CO from your blood stream, then gradually over the course of days you release the rest. It bonds in the same place as an oxygen molecule, therefore limiting the bloods ability to carry enough oxygen to organs and tissue.
We are born as a blank slate, but during our youth we are susceptible creatures with a high affinity to believe what we are told. As superstitious as we are, a sudden realization eventually unfolds that we have been tricked along the way. From the birds and the bees to Santa, the Easter Bunny, and the tooth fairy, we are tricked as children at nearly every turn—especially when it comes to gods. Religious indoctrination has a high affinity to human thought, and even after calling BS on the whole game, it can take years to purge all the nonsensical belief from our systems. Religion is every bit as dangerous to our mental health as CO is to our physical. Although they both effect our lives in similar ways with irrational confusion, dizziness, nausea, and making you perpetually weak. I am confident you can hold your own just fine without believing in something phony that says you need it, but in reality is a curse to your development.