Q: I just attended the nauseating wedding of my 30-year-old niece to her boyfriend of several years. Both of them seem as gay as possible but they are diehard religious fanatics. I can list 50 signs ...

The chest is a powerful muscle group, but it’s not a complicated one. It’s composed primarily of two muscles (the pectoralis major and minor), and its main job is to perform a very specific action: ...