Depression:A mental health disorder characterized by persistently depressed mood or loss of interest in activities; it's like having a computer virus that slows down your system and makes you unable to enjoy using it.
Anesthesia: This is what doctors use to make you sleep during procedures like ECT – consider it as putting your computer into sleep mode while updates are being installed.
Seizure: An uncontrolled electrical disturbance in the brain; imagine if there was an electrical surge causing all programs on your computer to open at once - that's similar to what happens during a seizure.