Mom of two, Jessica Alba, deals with it all: dirty diapers, snotty noses and "burpees," but those aren’t what you think. Burpees are one of Alba's least favorite exercise moves that combines a squat and a push up. The exercise "hurts your feelings," Alba tells People.com. "You have to squat down, do a push up and then clap your hands above your head." While the grueling move has definitely paid off for her abs and legs, Alba (pictured on Jan. 2, almost five months after giving birth to Haven) admits, "(I) complain a lot." New moms, take an exercise cue from Alba by trying to add a few burpees to your routine -- while the kids are napping, of course.