system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do antidepressants cause suicidal thoughts?

Being that "thoughts" come from external influences, I find it confusing that a medication would influence a thought.
gpt
A person in the midst of a deep depression can have no will to rise from the bed. If the antidepressant works well enough to get them out of bed there is still the chance that this renewed energy will be devoted to a final solution. It did not cause suicidal thoughts. It lifted spirits enough for a plan to be conceived and acted upon.