Example of that being useful?
(Basilisk Warning: may not be good information to read if you suffer depression or anxiety and do not want to separate beliefs from evidence.)
Having an internalized locus of control strongly correlates with a wide variety of psychological and physiological health benefits. There's some evidence that this link is causative for at least some characteristics. It's not a completely unblemished good characteristic -- it correlates with lower compliance with medical orders, and probably isn't good for some anxiety disorders in extreme cases -- but it seems mor...
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