Good points. I would also add that people from other parts of the world tend to have different body odor, which can be more noticable. For instance, I've hear

Good points. I would also add that people from other parts of the world tend to have different body odor, which can be more noticable. For instance, I've heard complaints that we Scandinavians tend to have a slight sour milk tinge to our BO, while immigrants from countries like India have a more "spicy" BO.