What could you do less of?

A thing I could do less of
Is catching wretched colds!
Dreadful sneezing, all bunged up
Or worse a runny nose.
You canโt do what you want to
Youโre miserable as hell
And everyone will hate you
Case they get one as well!
Iโve taken all my vitamin D
A substitute for sun
Wrap up well when I go out
And make sure that Iโm warm.
As for other vitamins
Iโm stuffed with fruit and veg
You canโt say as we grow the stuff
That we donโt eat enough.
Whisper it quite quietly
But perhaps I do too much.
It seems I donโt get injuries
But coughs and colds and such.
Forgetting that Iโm 70 plus
I push myself too hard
I fail to get the balance right
And end up off the track.
Thankful for the vaccines
COVID and the flu
I only get a sniffy nose
Never anything worse.