How often do you shower?

A friend of mine told me today that she shower ONCE A WEEK. She says she washes her hair like every other day, but without taking a shower or it would take too long, and that once a week she does a full shower (so body and hair). It seems crazy to me because like how can you not stink?? she doesn't smell bad - she did add "oh but I wash like the important body part separately" AND THANK GOD but still?? Idk it seems weird to me. I shower about every other day, sometimes every 2 days if I'm lazy lol (and more often if I like sweat a lot or got dirty). so please, tell me how often do you shower so I know who's the weird one!