The disease is normally caused by the body's own immune system turning on the adrenal gland, but cancer and tuberculosis can also trigger the condition.

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Home price stability is a necessary condition to trigger credit creation.

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Barring the sort of policy error that would likely also trigger a double-dip recession, that condition should be met as well.

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Dr Gabriele Nagel, one of the authors, said this may be because asthma is a collection of symptoms rather than a single condition, and different things may trigger it in different parts of the world.

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The sorry condition of municipal and state finances could yet be the trigger for a loss of confidence.

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