The Huberman Lab YouTube channel brings guest after guest to enable the listener to become more educated on topics that can improve their health and  longevity. 

Mind Pump focuses on resistance training methods and all aspects of nutrition.  The hosts have decades of personal training experience and this is shared through an informal discussion between them.

Peter Attia is a doctor who now focuses on longevity.  He is "famous" for having a calendar marking the year and week he expects to die based on statistics which motivates him to use science to gain "health span" beyond what is the expected lifespan.