In this WT | Studio talk, Hon.-Prof. Frank Tullmyn, CEO and Managing Director of PRIVAT INSTITUT F. TULLMYN VITANCOME + GETVOLITION, explores critical aspects of human performance and well-being, particularly under stress. He first delves into the interconnected concepts of vitality and longevity, illustrating their profound impact on daily function through the example of poor sleep. Following this, Prof. Tullmyn sheds light on his work within the military, detailing how he assists in enhancing the mindset and resilience of defense personnel, especially when operating under extreme stress. Finally, the discussion pivots to the innovative role of wearable sensors.