Oxygen O Atomic Number: 8 Atomic Weight: 15.999 _______________________________________________________________________________ Human Physiology: - Oxygen saturation in health body should be over 90% - 80% of all metabolic energy production is fueled by 0² - 3rd most abundant element in universe Prevalence: - 21% is concentrated is earth's atmosphere Source: - Breathing air - Complex carbohydrates, raw fruits, veggies are more than 50%O² - Proteins are 20-40% O² - Fats are less than 15%O² - Junk food imports almost zero O² while using proportionately larger amounts of 0² to be metabolized Deficiency: - Death - Lightheadedness - Lung and heart problems Excess: - 0² under pressure 50k (2.5x sea level pressure) is toxic conclusions pulmonary fibrosis