The 12 Hallmarks of Aging Part 2: More Zombie Cells and Removing Loud Cells

In part 2 of our Hallmarks of Aging series, the PeptidePhDs are back on the case — detective hats, zombie cells, muscle talk, and all. This episode dives into five more biological “clues” behind aging.From proteins that stop folding properly to cells thatforget how to take out the trash, the conversation makes complex aging science feel surprisingly approachable.The star of the episode? Movement. Again and again,muscle shows up as a major player in healthy aging — supporting metabolism, mitochondrial function, immune communication, and overall resilience. And yes, they also tackle “zombie cells” — thoseretired-but-still-loud cells that refuse to leave the party and stir up inflammation.Science over scrolling, peptides over procrastination, and one more reminder that moving your body might just be one of the best anti-aging strategies we have.