system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do we always look at our hands when we feel something is psychologically/cognitively wrong?
gpt
Probably because they are the easiest, most movable, spatially aware part of our body that we can look at to see if something is abnormal.  Short of doing some physical activity to gauge control and perception, hands are very telling of coordination loss.