In medicine,<unk>  is the functional deterioration of a structure or system that had been previously working with the help of allostatic compensation.<unk>  may occur due to fatigue, stress, illness, or old age. When a system is "compensated," it is able to function despite stressors or defects.<unk>  describes an inability to compensate for these deficiencies. It is a general term commonly used in medicine to describe a variety of situations.
Decompensation
Disinhibition
Derealization
Sensory substitution
Withdrawal reflex
Spasticity
Depurination
Body substance isolation