Here's When It's Appropriate to Comment on Someone's Body Transformation
by Aimée Lutkin from Lifehacker on (#49F3D)

Bodies change a great deal over time, and sometimes those transformations are dramatic. When you see a friend who suddenly looks different, there's a strong impulse to remark on it. Sometimes that kind of comment will be extremely welcome-even expected-and sometimes it will be unappreciated and downright hurtful.