Can electrodes kill humans?

I don't know if electrodes can kill a person if they are connected to the body... and I'm not sure how many volts they inflict. But I know they are used for medical purposes... I'd like to know how it feels like to have them connected to your body and when they are turned on... is it a pleasing... show more I don't know if electrodes can kill a person if they are connected to the body... and I'm not sure how many volts they inflict. But I know they are used for medical purposes... I'd like to know how it feels like to have them connected to your body and when they are turned on... is it a pleasing sensation to get electrostimulated? or is it painful? is it risky or lethal if not used properly?
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