Androstenedione is a dietary supplement that the body can use to enhance the production of testosterone, which helps build lean muscle mass and increases strength. Since the adolescent years are a time of maximum hormone production, there is concern of whether young athletes will benefit from additional testosterone production or what will be the potential outcome in the long run. Since testosterone levels don't start dropping until after adolescence, use of this performance enhancing supplement would probably be better suited for those who only reminisce about puberty. Fuller T. Youths cautioned against use of androstenedione. These days it's hard to get a breath of fresh air with all the pollution and ozone floating around.
Bad air makes outdoor activities especially hard on the lungs and respiratory system.
The results of a study in the Netherlands have shown that when vitamins C and E were taken as dietary supplements, by 29 amateur bicyclists, they helped the body avoid the negative effects of ozone on lung function. Each cyclist took 650 mg of vitamin C and 75 mg of vitamin E daily. Previous studies have investigated the role of antioxidants in helping to avoid injury to lung tissue and suggested a protective role for vitamin C and for a combination of vitamin C and E, but not vitamin E alone. Again, this is another study that attests to the beneficial effects of antioxidant dietary supplementation on human health. The message is don't rely on any single antioxidant, but get as wide a variety as possible, as they each work differently and in harmony together.