That's what my mum reckons. Poor little mite (19 months old) has been in hospital recently with pneumonia and it was all a bit scary but thankfully he is well on the way to recovery now, although he still has a nasty cough. It is getting a bit parky here in Yorkshire and my DM is adamant that he should not be exposed to cold air or Something Bad will happen. I wasn't planning on taking him for a walk in the woods or suchlike, just a 10 min jaunt in the buggy to get to the library, but DM thinks this will have dire consequences.
At first I instinctively dismissed this as an old wives' tale but then I thought, well maybe cold air would do something bad to all that yucky mucus knocking about in his lungs, and I know cold air can set asthmatics off.
Is she right?