The results showed that respiratory function declined as oral health worsened.

BBC: Poor teeth damage lungs

"There is a worsening of the respiratory function, related to the state of his depressed immune system, " Villegas said, reading an official statement on state-run VTV.

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Engaging in new behaviors to enhance our health like regular exercise will lead to improved muscle tone, cardiac function, stronger bones, better respiratory function, more balanced emotions and calmer nerves, greater mental clarity and a better night's sleep.

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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)

It may also cause impaired lung function and increased respiratory infections.

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