Every time someone tells the truth about abs and posture, it can't help but go viral for providing a much-needed dose of reality not seen in magazines. Anna Strobe is an Australian fitness fanatic and mother of twins whose Instagram is all about designing home workouts for busy moms (are as they say in Australia, "mums.")

On August 3rd, she posted two stomach selfies taken seconds apart. In the seated picture her skin sags, because that's how skin works.