Taking a shower and seeing a wad of hair circling the drain can be alarming. You might wonder if you’re scrubbing your scalp too hard or using a shampoo that’s doing more harm than good. Or maybe ...

Hair loss is an unfortunate, yet real, part of growing older, and if you’re still young, you may think you have at least a few years before you start seeing signs of balding. Case in point — 30 to 50 ...