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"Dave Asprey suffered countless symptoms of aging as a young man, which sparked a life-long burning desire to grow younger with each birthday. For more than twenty years, he has been on a quest to find innovative, science-backed methods to upgrade human biology and redefine the limits of the mind, body, and spirit. The results speak for themselves. Now in his forties, Dave is smarter, happier, and more fit and successful than ever before."