SHR # 2246 :: SFH: 14 Exercises You Should Never Do After 50 Examined plus The Roles of Nutrition and Training Styles Influencing Muscle Fiber Changes :: Dr. Jeff Golini, PhD - Dr. Andy Galpin - A recent article that went viral warning people over 50 not to do pushups, pullups and a variety of other common exercises, made most gym warriors do a double take. We examine the articles validity. PLUS Muscle fiber play a large role in how well you perform and how well you will age. But you're not sa hostage to them. You can influence the type and predominance to favor your desired outcomes. ::