It really depends on the context. Age can be a necessary indicator in some treatments. For some drugs for instance, the term 'elderly' may have to be used to indicate a group for whom it may be more or less suitable, or certain side-effects more or less likely.
However, for the individual, I would ask for your age to be given, rather than a group. The other medical professional is then informed.
I was pleased that in all recent news about vaccines, age groups rather than descriptions were used.
do you still buy BBC radio times?
What is the most random school memory you have?
Did you think you were poor growing up?
What did you you think you would have by your current age that you don't?
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