Dr. Jennifer Chwalek: It's based on genetics as well as hormones. Some men, you know, have more hair follicles, so they can grow denser, coarser beards than others. Testosterone gets converted in ...

Commercial: If you're concerned about your thinning hair, call Hair Club for Men and receive our free brochure. Flanagan: In fact, there's an entire industry built around fighting it. Man ...