I want to have a small waist but apparently I have a big rib cage, I don't like that. Is there any exercise to reduce rib cage? - Quora
Thoracic Spine: What It Is, Function & Anatomy
How Do You Get A Smaller Rib Cage? Best 5 Workouts And Tip
Female rib cages tend to be longer and more narrow, while male thoraxes are shorter and wider. Male ribs are also oriented more horizontally. Physical anthropologists explain it with differing lung sizes
Please Help. (M17) Dealing with wide hips/small rib cage. Been working out for 7 months. : r/bodybuildingpics