It hosts testosterone blood-test "T Parties" with tickets costing from $100 to $400. Get the inside scoop on today’s biggest stories in business, from Wall Street to Silicon Valley — delivered daily. He later told Insider in a message on X that his qualifications include "personal experience boosting my T from 790 to 1090 and peer-reviewed research." In May, Tang held a "T Party" in Colombia where he tested 24 men, according to a post on X. Beyond that, Vinjamoori noted that "a single-minded focus on testosterone might not offer the well-rounded approach needed for optimal health and longevity."

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Persons: Jeff Tang, Tang, he'd, it's, Anant Vinjamoori, Vinjamoori, he's, Bryan Johnson's Organizations: Service, Party, Athens Research Locations: Athens, Wall, Silicon, San Francisco, Colombia