What if all Nitrogen Disappeared?

Our atmosphere is 78% nitrogen. Together with oxygen and other gases, our atmosphere exerts a huge pressure on our bodies.

While breathing, this atmospheric pressure helps squeeze out oxygen from our lungs into our blood. So, without nitrogen, atmospheric pressure would drop, thus reducing the amount of oxygen entering our blood. Also, air in our sinuses exerts an equal amount of pressure to balance the atmospheric pressure. However, low atmospheric pressure will create pressure differences, leading to headaches. Without nitrogen, number of free unstable oxygen radicals would drastically increase in our body, leading to damage of our DNA, thus increasing the risk of cancer. Lastly, nitrogen is an essential component of our DNA, RNA and even chlorophyll, the pigment which helps plant prepare its food. So basically, without nitrogen, there would be no life on earth.

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