Now that wearing a face mask is becoming an increasing feature of daily life, spare a thought for those of us who wear glasses.
Yes, spectacle-wearers will be finding that when their mask is on, the lenses are prone to fogging up.
The BBC have written a useful page and published a video with recommendations on how best to wear your mask to minimise fogging.
The page can be found by clicking this link: https://www.bbc.co.uk/news/uk-53395513
To see the relevant content, you will need to scroll down to the bit about "How to stop it fogging up my glasses".