Climate control
That must mean Brazilians are more hygiene-conscious then, right? Wrong.
If you think about it, you probably naturally shower more during the summer months because it’s warmer, so you get more sticky, sweaty, hot and bothered. Well, imagine if you were exposed to that kind of heat all-year round. It’d bring your individual average up, and give the nation’s collective total a boost too.
If we’re to assume that logic’s correct, it makes sense that Brazil trumps us - and every other country in the study, for that matter. The average annual weather temperature there is 24.6 degrees, compared to our 9.3 degrees.
Anyway, the point we’re making is the difference doesn’t make us any less clean. Generally speaking, the hotter the country the more showers its residents take.