While its size has fluctuated in relation to geological variables, the level of particles of oxygen present among the other gases that make up the air is currently much lower than those who are safely in bygone times of our planet and in particular, according to recent studies, during the Cretaceous period were recorded. Industrialization and the use of vehicles which feed on fossil fuels, major emitters of residues of dioxide of carbon into the atmosphere, have favoured the lack of balance and thus poisoning the air. Meanwhile, our body to the extent possible, makes immeasurable efforts to adapt to new circumstances, something that not always get some quickly, hence our body runs out disturbed revealing against its own system. Cells, those that help us to keep us in life become pathogenic, carcinogenic and stop exercising tasks of Defense to become aggressive. We have analyzed air bubbles crystallized amber belonging to prehistoric periods with levels of up to 15% more oxygen concentration that today would be impossible to assimilate, perhaps more toxic than the same carbon dioxide for our lungs.

"The cloud of gases that rise above the atmosphere of large cities is no longer show a crystal blue, to look like a rusty, broken and dirty feeling."