Before my radiotherapy there was a very strongly pressed point of WHY I had to hold my breath during the treatment: To keep the target still and accurate, but most importantly to make sure my heart would be out of the way of the treatment.
I didn't have any trouble with it but there was a lot of chatter about lung capacity and how as we age it diminishes. They would always say I was an easy patient and if there were delays it was usually because they'd had to stop someone's treatment because they couldn't hold it and needed a break so they'd had to reset. Nothing to be ashamed of, of course, in a lot of cases it's practically unavoidable.
I find it so just bonkers nuts that through your whole treatment nobody even mentioned it. Just reinforces my whole desire for there to be accessible info pamphlets for ever single thing literally handed to patients on the spot every step of the way.
