What is your purpose for bathing regularly?

I was just thinking about this pick
link

and I was wondering why people are so grossed out about not bathing daily. (bathing=taking a bath, sponge bath, showering, anything of the sort)

What is it everyone is trying to wash off?
don't get me wrong, I ducha, ducha de daily, but I'm beginning to wonder why. I think as long as we're not sweating o rolling in dirt, we should be fine.

Is there a certain odor people are getting rid of? Where does this odor come from if it's not sweat?

I'm not letting this change my clensing habbits at all, o any of yours. I'm just curious.