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

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The control group showed a decrease in soleus muscle mass and strength, the development of insulin resistance, and a loss of bone mineral density and resistance to breakage.

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Nutritionists say that limiting caloric intake in a compressed time frame can lead to nutrient deficiencies, causing decreased immune function, dry skin and loss of muscle or bone density, for starters.

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First of all, at 16 years old you are in the midst of an important period for growth and bone development, and losing weight too quickly (more than 1-2 pounds per week), could result in bone loss which could affect bone density in adulthood.

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"We found that while pamidronate prevented bone loss, it did not, on average, increase bone density, " Smith says.

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Height loss can alert doctors to osteoporosis that other tests miss, particularly those that measure bone density in the wrist or hip.

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The risk of loss of lives and economic disaster in the southern Mediterranean is high due to strong population density along its coasts: around 150 million people concentrated in 46, 000 kms of coastline, 110 million of them living in cities bordering the sea and some 200 million tourists visiting the area every year.

UNESCO: Indigenous Peoples