Very few people reading this story from the BBC will know why I laughed out loud when I reached the penultimate paragraph and discovered who the CEO of the Cystic Fibrosis Trust is.

If you're reading this Malachy you'll know what I mean.

So salty sweat is a sign of cystic fibrosis - who knew.  I must pass that news on to a few sweaty hypochondriacs I know.