For instance, anxiety therapy requires both the cognitive part where you work on your thought and the behavioral part, exposure, where you physically expose yourself to your fears (assuming it's something in the real world).
As for depression and anxiety levels changing through caffeine intake, it's in the same ballpark as alcohol--you affect your internal chemistry, so different processes start to work differently, and so a given train of thought can be temporarily boosted or silenced. But because you still have the same core beliefs, as soon as you return to your baseline, you'll get back to the same psychical state as before.
For instance, anxiety therapy requires both the cognitive part where you work on your thought and the behavioral part, exposure, where you physically expose yourself to your fears (assuming it's something in the real world).
As for depression and anxiety levels changing through caffeine intake, it's in the same ballpark as alcohol--you affect your internal chemistry, so different processes start to work differently, and so a given train of thought can be temporarily boosted or silenced. But because you still have the same core beliefs, as soon as you return to your baseline, you'll get back to the same psychical state as before.