Idk, this seems like a correlation doesn’t equal causation situation. It’s just as likely that prolonged smiling just made smiling become autonomic regardless of their current mood.
I think that saying prolonged smiling directly causes depression is a bit of a stretch.
Idk, this seems like a correlation doesn’t equal causation situation. It’s just as likely that prolonged smiling just made smiling become autonomic regardless of their current mood.
I think that saying prolonged smiling directly causes depression is a bit of a stretch.