In episode 5 of MASS Office Hours, Dr. Eric Trexler is joined by Lauren Colenso-Semple. They answer listeners' questions about microgravity, tracking muscle growth, reverse diets, recovery diets, satellite cells, intermittent fasting, natural approaches to increase testosterone, and much more. The MASS crew goes live for Office Hours every Wednesday night at 7pm eastern time. Be sure to join us for a future episode! Time stamps: 0:00 Introduction 1:54 Effects of microgravity 8:01 How to track muscle growth 14:19 Reverse diets vs recovery diets 23:23 Are satellite cells are required for muscle growth? 29:51 Training and protein for older adults (revisited) 39:52 Intermittent fasting for building muscle& staying lean 56:40 Eric has zero advice regarding hair loss 57:09 Can we boost testosterone enough to matter? 1:03:16 Designing unrealistic studies 1:14:03 Concluding remarks