system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What causes the switch process in bipolar disorder?

What biological process causes a person to go from severely depressed to euthymic or manic and back again?

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gpt
Mainly hormones and the amount your body produces or gives you - or doesn't because something stops/slows down the production of hormones that make you happy. (Serotonine and Dopamine) If some points in your body get close to them - you get happy. This is manic BPD.


Works also the other way around some bodies produce more of the 'feel good/euphoric' hormones but less 'feel bad' ones with the opposite effect. This is depressive BPD.


This is caused by neurological problems. Your brain can't control this right and you can't control your brain when it comes to this . Imagine pulling off all cables on a machine with no Idea how to reattach them.

Feels like sitting on the back of a bike with no driver and just sometimes you can take the wheel yourself.


Edit: ELI5 : Your brain doesn't produce the needed amount of 'happy' and 'sad' hormones or can't distribute them right. So they wait until they can 'come through' which leads to fast mood swings.