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These Hair Mistakes Might Be Aging You

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April 14, 2009 - David Livingston/Getty Images North America more pics like this »
3. Having Too Short Layers
Well-placed layers can help thinning hair have more volume, mainly because your hair won't hang as heavily as it would if it was all one length. But you have to get the correct kind of layers to avoid dowdiness.

Having too short layers can make your hair look even thinner and give it a choppy quality, which is quite aging. You want to get hidden layers around your hair, and avoid short ones around the crown. This will add volume and natural texture.