I used to notice that I’d seem to come down with a cold as soon as I’d switch off for Christmas/New Year (and this is in Australia when it’s hot summer weather)

I used to notice that I’d seem to come down with a cold as soon as I’d switch off for Christmas/New Year (and this is in Australia when it’s hot summer weather). It seemed to happen several times over consecutive years when I was in peak startup stress mode. Someone told me that it’s a virus that’s been in your system for a while, but “suppressed” somehow, and only when you take a rest is your body able to devote energy to a full immune response. I don’t know how true it is; but an interesting possibility.