Living in Australia - and not the sub-tropical/tropical rainforest areas - I
wouldn't know about CFs and cold air. Household mould is extremely toxic and is
dangerous for everyone, not just CFs. Of course CFs are generally more
susceptible to bacterial infections in the lungs so humidity can be a danger -
hence, if your niece lives somewhere warmer, it should be dry as well. Cold
environments can be a danger as when it's cold, people tend to stay indoors,
close the windows, hence if someone has a cold, or the flu, those around that
person are more likely to catch it. The only thing I can think of about cold air
in the respiratory system is that it could constrict the airways. The body has
an inbuilt aversion to extreme temperatures - hot or cold - one example is the
way the penis shrinks in cold weather, the way our extremities tend to get very
cold as a response. These reactions are like reflexes, part of the inbuilt
bodily process to maintain the status quo. So...your niece may
benefit from a warmer climate, she may not. It depends how severe her response
to the cold is. But I'm sure there are studies...I suspect however, that it's
not a huge focus...after all, CF originated as blonde haired, blue eyed genetic
condition, found in the nordic areas of Europe. You can't tell me they don't
suffer the cold. So... you have to wonder if it's such a bad thing. I've always
found the heat and humidity to be far more debilitating than cold weather. But
then, it just doesn't get that cold where I am. Wish I could be more help.
Jo.





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