Today, Insiders Health TV discusses an odd tale of lies. What would you do it you found out that your fabulous surgeon-pilot-philanthropist had never graduated from medical school? Also, have you ever been jealous of those naturally skinny 20- and 30-year olds who never have to work out? Donât be. Working out in your 20s and 30s may keep you healthier later in life. Also, frequent short workouts may be more effective than longer strenuous ones!