Being libertarian is irregular, which automatically implies an irregularity in the brain. It is still subjective that this irregularity is an illness. In the real world people are forced into treatments based on the unilateral decision that they have a mental illness. That’s where the cases like mass ritalyn use come in. Another example, I knew someone that was ordered onto medication for giving false testimony in court.
Since a very long time ago. The WHO and World Federation for Mental Health held conferences straight up pitching the doctrine that mental health is dependent on having their approved social system, involving total control over life, which you can see in “Mental Health and World Citizenship”. The existence of mental illness is not even relevent. What matters is that psychiatry hijacked mental illness and turned it into a weapon. The writings of Szasz are very relevent to the events of the time of his writings.
Seasonal affective disorder is attributed to elevated melatonin and depressed serotonin (from which melatonin is synthesized). The hypothesis of low serotonin being the cause of depression is more or less disproven. All it means when journalists say that A is “linked” to B is that A and B have circumstantial correlation, which pretty much means squat in the context of the complex biochemistry of the human body. This might not be pertinent to the question of psychiatry, but I thought I should mention it.