I taught exercise and aerobics classes to morbidly obese women. Most of them were 350 lbs. and over. One woman was 500 lbs. plus. I worked them hard and they really worked up a sweat so all BO was forgiven. UNLESS they came in for the next class and smelled bad before class began. It was unpleasant enough for the women standing next to them but b/c I was in front of them all and walking around to make sure that they were doing the exercises and routines properly, I got hit w/it from everyone in the class. I never wanted to embarrass them in front of others b/c it took enough courage as it was for them to join the class to begin with; they were self conscious about "jiggling" in front of others. But so much body heat was generated that sometimes I thought I'd pass out from the smell if one or more of them didn't bathe properly. You'd think that they themselves wouldn't be able to stand the smell but that was never the case. They'd always be shocked when I'd tell them that they'd have to spend more time on their hygiene.