a hearing doc won’t be much help with anything aside from hearing
Irrelevant to my argument. All I mean is because they go to visit someone for one problem can mean they visit other people for other problems they have - rather than ignoring things and staying at home. And I am not claiming what I said to be the actual cause - at least no more than what the study can claim. There could be many other factors at play here as well. My only point is to not confuse causation for correlation and that these types of studies are almost useless in what they tell us.
Hell, even spurious correlations happen all the time. You cannot use two graphs looking similar to prove any point without a lot of control for all the other variables that might be at play and not go looking at large amounts of data for anything that might seem interesting.