In my grad program there were a few foreign exchange students that obviously didn't bathe very often and the smell was quite overpowering. Maybe diet contribute

In my grad program there were a few foreign exchange students that obviously didn't bathe very often and the smell was quite overpowering. Maybe diet contributes to it and we have more availability of spices and other pungent things. But I got assigned an office with one of the students and decided to hold office hours elsewhere. I believe hiding smells has been a thing for a long time so I can't imagine it just goes away.