Many things can trigger stress reaction, including prolonged periods of motional and physical overload, danger, threat, unexpected news, illness, etc. Extended periods of stress may cause accumulated (chronic) fatigue syndrome.

Accumulated (chronic) Fatigue is defined as fatigue from which normal rest does not produce recovery. Accumulated fatigue is often caused by extended periods of stress with inadequate recovery periods, which results in decreased productivity, compromised immune function, and reduced alertness. Fatigued workers perform poorly, behave carelessly, tolerate greater errors, and become inattentive.

Chronic fatigue often results in increased stress, which may present itself through certain behavioral and physiological indicators, such as: decreased motivation and low morale, increased irritability and depression, confusion, poor problem-solving, poor abstract thinking, poor attention/decisions, poor concentration/memory, extreme emotional responses, social/behavioral changes.

Successful stress treatment may include psychological consultations, therapy, learning stress management techniques. or medications.