Oxygen – can’t live with it; can’t live without it

With our present genome and its limited investment in self-preservation, we cannot live for more than about 120 years while dealing with the damage done by oxygen (with help from iron and copper, mainly), and we cannot live more than about 10 minutes without any oxygen. Between those extremes, most Americans live about 75 years with so/so oxygenation of their tissues and mediocre oxidative defenses.


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