The Three Hundred is the latest initiative undertaken by the Methuselah Foundation, administrators of the Methuselah Mouse Prize. How much is a greatly extended healthy life span worth to you? Is it worth the small effort to pledge a few dollars a day to help medical science advance towards understanding and eventually curing aging? I think so, and others agree. Now you can show your support by becoming a member of The Three Hundred, a group of visionary humanists who will make a real difference to the future of aging research and healthy life extension. As someone who values a longer, healthier life, isn't it time to make the commitment?