The biological model for psychopathology tends to look for the biological causes for a behavioral abnormality. The faulty biochemistry is identified as the main cause of the disparity and this can be a result of a combination of multiple medical and biological ailments. The biological model for psychopathology also states that abnormal behavior caused by chemical imbalance can be hereditary in nature.
It can be passed down the generation and has a high rate of probability if other members of the family already have. The abnormality rate in twins is much higher than in single individuals. In case where the individual might be adopted the biological psychopathology can occur due to disorders caused by chemical imbalance during their development and growth phase. One of such characteristic conditions is the bipolar disorder.