abstract:The Life Extension Foundation (LEF) is a non-profit research-based foundation headquartered in Fort Lauderdale, Florida, established by co-founders Saul Kent and William Faloon in 1980. Its primary purpose is to fund research and disseminate information on life extension, preventive medicine, anti-aging and optimal health as well as sports performance, with a focus on hormonal and nutritional supplementation, deriving much of its income from the sale of vitamins and supplements.