However, schizophrenia has also been associated with many environmental risk factors, in particular various prenatal and perinatal stressors, infectious agents, childhood and adulthood trauma and substance use.
Gender: Male. Usage: Kasten is not a popular first name. It is more often used as a boy (male) name. People having the name Kasten are in general originating from United States of America.
Shafer is essentially a German surname from the German SchÃ¤fer - shepherd. There are variations of the name like Schaefer, Shaffer, etc., and while there are Jews with these surnames, the origin is German. Note that Jews commonly took on surnames of their countries of origin. My own surname, Weinberg, is a case in point.