Foam is an efficient thermal insulator, so the temperature of the oil can become difficult to control. The presence of air bubbles in the fluid can lead to excessive oxidation, cavitation, the reduction of lubricating properties of the oil and hydraulic system failure. Causes The causes of foaming are many. The most common include: Water contamination
Psychosis refers to an abnormal condition of the mind described as involving a loss of contact with reality. People with psychosis are described as psychotic. People experiencing psychosis may exhibit some personality changes and thought disorder.
Neurotic behavior is due to a mental imbalance, creating depression, anxiety, or stress. Psychosis is a symptom of the mental state that causes impaired thought, perception, and judgement. Some drugs or traumatic episodes are to blame for psychotic behavior.