Body odor happens to the best of us at some point or another. Yet, for some Americans, foot and underarm stench is a daily bother. It’s the root of unhappiness, the cause of public paranoia, and a source of raw embarrassment. We’re talking about people who shower regularly, who wear deodorant, who do laundry — and yet, despite their best efforts, they still manage to produce a foul odor that offends those around them. Read on to learn about five lesser-mentioned causes of body odor.