Loss of density makes hair harder to style because the hair doesn't support itself as well, says Kevin Mancuso, creative director at Nexxus.

WSJ: Old Hair Days: Products to Help Manage Gray and Thinning Hair

Not exercising consistently can lead to muscle atrophy, diabetes, bone density loss, and other problems.

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By allowing them to stand up and walk, the bionic suit not only helps users overcome issues like bone density loss and neuropathic pain related to their condition, but also to gain reams of confidence -- an oft-overlooked factor in the recovery process.

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