Core Viewpoint - Bryan Johnson, a Silicon Valley entrepreneur, is dedicated to anti-aging and longevity, investing significantly in various health technologies and practices to reverse his biological age and promote a healthier lifestyle [1][2][3]. Group 1: Personal Journey and Philosophy - Johnson's journey into anti-aging began after selling his company for nearly $1 billion, leading him to explore how to live a more meaningful life [4][5]. - He emphasizes the importance of scientific measurement in health, advocating for a data-driven approach to understanding and improving personal health metrics [12][18]. - The concept of "Don't Die" is framed as a universal call to action, transcending cultural and ideological differences, focusing on the shared human desire to live [26][27]. Group 2: Health Practices and Findings - Johnson follows a strict regimen that includes low-calorie intake, regular exercise, and extensive supplementation, claiming that foundational practices like sleep, diet, and exercise account for 80% of health outcomes [19][21][36]. - He has publicly shared over 60 biomarkers related to health and longevity, aiming to create a measurable standard for health that can be replicated by others [13][34]. - The focus on resting heart rate before bed is highlighted as a key indicator of overall health, with specific recommendations for improving it through lifestyle changes [20][21]. Group 3: Community and Cultural Impact - Johnson has created support groups to foster accountability and community among individuals striving to improve their health, emphasizing the importance of social support in achieving health goals [24][25]. - He aims to shift cultural perceptions around health, making good health practices socially desirable and recognized [23][34]. - The initiative to establish a "Rejuvenation Olympics" encourages experimentation with various therapies to discover effective methods for slowing aging [31][34].