Weakness - sudden muscle weakness, impotence. There is General weakness (with heavy infections, intoxications, starvation, lesions of the cerebellum and adrenal glands) and organ (for example, weakness of the heart in the regeneration of the myocardium or its depletion as a result of long hyperthyroidism caused by valvular or hypertension). The term " weakness" sometimes refer to the sickly condition of apathy, reduction of mental health. The struggle with the weakness lies in treating the disease that caused the problem.