Anja know she's fine.

Anja Zeidler is a major fitness buff, and you know what that means. It means she's a healthy girl who's gonna live a long life and avoid big medical bills due to a nutritious diet and steady exercise regimen.

Of course, it also means she's got a banging bod. And we've found in our time doing "research" on Instagram that girls who work hard to get that toned, well-shaped booty love showing it off. We like to do our part to encourage this type of behavior -- by looking. So take some time to appreciate Anja's "body of work." It really is the least you could do.