Longevity Music, Anti-Aging Nasal Spray, How To Look 20, and more... : 1515

This week's biohacking roundup covers a drug-repurposing screen for longevity, protein restriction's anti-aging effects via FGF21, a new cadaver-derived skin injectable, arts engagement slowing biological aging, and a review of 41 studies testing biohacking interventions (including semaglutide) against epigenetic clocks.