A colorless, tasteless, odorless, gaseous element occurring in the free state in the atmosphere, of which it forms about 23 per cent by weight and about 21 per cent by volume, being slightly heavier than nitrogen. Symbol O. Atomic weight 15.96.
But on average, I go to the gym about four or five times a week. Today, I'm so experienced in training - I'm actually listening to my body now. My body needs freedom. When I train I create serenity and I produce oxygen in my blood. It helps me to think better and relax. By training, you accentuate the problem. Jean-Claude Van Damme
Not all chemicals are bad. Without chemicals such as hydrogen and oxygen, for example, there would be no way to make water, a vital ingredient in beer. Dave Barry