Codebreaker's Home

CB blinks.
"Both of those things can be done in the same day. But I can't do both at the same time due to the difficulty involved. Eating while exercising is not safe as you have a high risk of getting cramps. Or choking. If food were to enter my windpipe because I was breathing heavily I would likely lose oxygen to my bloodstream and die."
Does his patron know what oxygen is? He would have assumed they at least understood that mortals need air to live most of the time.