By Eleanor Langston for FITNESS magazine
If you're seeing bumps on your behind, you're in good company: About 90 percent of women-and virtually no men-have cellulite, fat cells found underneath the top layer of the skin that have squeezed between bands of connective tissue, or collagen, attaching your muscle to your skin.
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While the structure of women's connective tissue is vertical (like mattress springs), men's collagen is angled, which means that fat cells don't push through and pucker as much. Dermatologists believe that poor circulation, which is primarily genetic (thanks, Mom and Dad!), can exacerbate the look of lumps. "When blood flow slows, collagen separates, allowing fat to come up to the surface of the skin, creating an orange-peel effect," says Howard Murad, MD, a FITNESS advisory board member and author of The Cellulite Solution.
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