Many guys view their lower stomach as more of a problem zone than higher up and think they can zero in on that part. First of all, your lower region likely isn't any less toned – it's just covered by more belly fat. Second, you couldn't work only the lower abs if you tried. "When clients tell me they just want work their lower abs, I laugh," Renderer says. "Get this straight: You're rectus abdominis is one unit." Still, people often confuse this single muscle for multiple muscles. "Certain core exercises involve the hip flexors and other muscles, which makes you feel like you're doing more for your lower abs than your upper abs, but you're really not," says Bryant.
Credit: Viktor Gladkov / Getty Images
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