I don’t know whether the last one is valuable. It might have resulted in a lot people getting less sun than healthy for them because of Vitamin D production.
And I gave both positive and negative effects of alcohol. So what?
By “valuable” I mean an easily manipulable causal mechanism that explains a relatively large amount of the population variance of health. I don’t mean that it has actually been manipulated, let alone manipulated correctly. And I certainly don’t mean that this is all we know about medicine. We understand vitamin D and inebriation because of experiments.
I don’t know whether the last one is valuable. It might have resulted in a lot people getting less sun than healthy for them because of Vitamin D production.
And I gave both positive and negative effects of alcohol. So what?
By “valuable” I mean an easily manipulable causal mechanism that explains a relatively large amount of the population variance of health. I don’t mean that it has actually been manipulated, let alone manipulated correctly. And I certainly don’t mean that this is all we know about medicine. We understand vitamin D and inebriation because of experiments.