This is what we are witnessing in real time:

[PCIntern]

DECOMPENSATION

Over the last few weeks, we have seen an increase in the loss of inhibition of mood/temper and “foul” language usage. Disappearing are the formal constraints which would rein in his overt madness and now it really is Trump being Trump. The MSM has been playing games with this guy since the 1980’s and making allowances for behaviors and statements that would cause any other human to be fired, ostracized, and disowned by family. For them it was like having that favorite uncle who has been diagnosed as insane and hospitalized on occasion in “sanitariums” but is a riot because he “tells it like it is”.

Never mind that he is an incredibly destructive individual in every sense, “he makes us laugh” which is synonymous with “he helps us sell papers”.

But after some variable time, the defense mechanisms are penetrated and the psyche begins to deteriorate, first slowly, then picking up speed until crisis level is reached.

I have copied Wikipedia’s entry as it pertains to this condition:


In medicine, decompensation is the functional deterioration of a structure or system that had been previously working with the help of compensation. Decompensation may occur due to fatigue, stress, illness, or old age. When a system is "compensated", it is able to function despite stressors or defects. Decompensation describes an inability to compensate for these deficiencies. It is a general term commonly used in medicine to describe a variety of situations.

Medical term
For example, cardiac decompensation may refer to the failure of the heart to maintain adequate blood circulation, after long-standing (previously compensated) vascular disease (see heart failure). Short-term treatment of cardiac decompensation can be achieved through administration of dobutamine, resulting in an increase in heart contractility via an inotropic effect.[1]
Kidney failure can also occur following a slow degradation of kidney function due to an underlying untreated illness; the symptoms of the latter can then become much more severe due to the lack of efficient compensation by the kidney.[citation needed]
Some of the signs of chronic liver disease detectable on clinical examination are associated with decompensation.[citation needed]
Psychology
In psychology, the term refers to an individual's loss of healthy defense mechanisms in response to stress, resulting in personality disturbance or psychological imbalance.[2][3][4]


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And there you have it….and it ain’t just mental.