I too have pondered this, Jonah. It’s something constitutional. My father

used to get colds, but you’d hardly know it. His voice went a little raspy,

was all, and he’d blow his nose now and then. It would never have crossed

his mind to take time off work. My mother, by contrast, though a tough

person physically (coal miner’s daughter) was floored by colds, and in

abject misery for days.

I got Mum’s genes. A cold wipes me out for a week. It’s a major

affliction. Rosie’s like my Dad — for her, a cold is just a minor

nuisance. No fair.