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This is Scientific American 60-Second Health. I'm Dina Fine Maron. Got a minute?

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New news is goo news, when it's inside our bones, anyway.

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Because a combination of imaging techniques and modeling has revealed that our bones are filled with a natural chemical goo that's key to the bones' function as support structures.

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The finding is in the Proceedings of the National Academy of Sciences.

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And it could inform research into the prevention and treatment of osteoporosis.

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Bone actually largely consists of tiny crystals of calcium phosphate,

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and the goo is in fact a combination of the compound citrate and water.

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The viscous mixture surrounds the crystals, letting them slide and slip past each other.

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The resulting flexibility lets bones bend but not break under normal pressure.

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Most of that flexibility had been attributed to the presence of the protein collagen,

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but the citrate goo appears to play a big role too.

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Unfortunately, as people age, the goo may begin to seep out.

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The remaining mineral crystals then can fuse together, according to lead researcher Melinda Duer at the University of Cambridge, and the bones become brittle.

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Keeping the goo in its proper place between the mineral crystals might thus help ward off osteoporosis.

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Which be a bona fide breakthrough.

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Thanks for the minute, for Scientific American 60-Second Health. I'm Dina Fine Maron.

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