Mental illnesses are hereditary, and parents are freaking out. It is important to note that like other illnesses, the genes are just a predisposing factor, not the only factor. There are plenty of conditions that science has told us can be attributed to our genes. Being genetically predisposed to an illness like high cholesterol is one thing, but now we have learned that mental health illnesses are on the list as well. Not only were these likely passed onto us by our parents and their parents, but we may well pass this onto our children as well. Consider the knowledge as something of a cheat sheet, to give you and your child or children a head start on dealing with any potential future issues.