X-rays, which measure the density of bone.

ECONOMIST: Medicine

Japanese researchers will now study how the bone density of the Medaka fish has changed over time, helping them understand similar changes that occur in human astronauts.

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In the past, it was widely believed that a decrease in bone density was the main cause of osteoporotic fractures.

ECONOMIST: Medicine

Which is why, during the trials, a group of doctors led by Robert Grossman of the Methodist Hospital, Houston, will monitor such things as the participants' bone density, respiratory function and cardiovascular systems, all of which are expected to improve when someone is no longer stuck in a wheelchair.

ECONOMIST: Bionics (I)

But some of those who suffer such fractures have exactly the same bone density as people who do not.

ECONOMIST: Medicine

In its medical division, the company makes systems to gauge bone density and perform a host of patient monitoring functions.

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Also, losing weight quickly could lead to gallstones and thinning hair because dieters are getting the minimum amount of nutrition, which can affect hair and bone density.

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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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