Anti-aging now has a number of quite different common meanings and connotations, each of which is championed by a particular group or loose coalition of interests. Advocates for these groups have a way of diving into the fray without defining their terms, and this tends to make reading about the surrounding debates somewhat confusing for a newcomer. In the scientific community anti-aging research refers exclusively to slowing, preventing, or reversing the aging process. While the future is looking very promising, there is presently no proven and available medical technology that slows or reverses aging in humans. (Although the jury is still out on the practice of calorie restriction and regular exercise). Nor is there any currently available method short of waiting for people to die to accurately measure the effects of an alleged anti-aging therapy. In the medical and reputable business community, anti-aging medicine means the early detection, prevention, and treatment of age-related diseases. This is quite different from tackling the aging process itself, and a wide array of strategies and therapies are currently available. Calorie restriction, for example, lowers the risk of suffering a wide range of age-related conditions.