According to the CDC: "Genetics and family history
Scientists believe that many mental disorders result from the complex interplay of multiple genes with diverse environmental factors. Family studies, often with identical twins who share the same genes, have provided evidence of genetic contributions to depression, bipolar disorder, schizophrenia, autism, and other mental disorders. Even for those with genetic risk, however, environmental factors can play a significant role in whether or not a person develops a disorder, or the severity of an illness."
Many answers can be found at
http://schizophrenia.com/hypo.php# regarding schizophrenia and the causes. The opening paragraph may help: "Experts now agree that schizophrenia develops as a result of interplay between biological predisposition (for example, inheriting certain genes) and the kind of environment a person is exposed to. These lines of research are converging: brain development disruption is now known to be the result of genetic predisposition and environmental stressors early in development (during pregnancy or early childhood), leading to subtle alterations in the brain that make a person susceptible to developing schizophrenia. Environmental factors later in life (during early childhood and adolescence) can either damage the brain further and thereby increase the risk of schizophrenia, or lessen the expression of genetic or neurodevelopmental defects and decrease the risk of schizophrenia. In fact experts now say that schizophrenia (and all other mental illness) is caused by a combination of biological, psychological and social factors."
My opinion, for what it is worth, although people (children) may be predisposed to developing mental illness, many live stable and healthy lives. Even those that are abused as a child. I think that mental illness is about 80 percent genetic and 20 percent environmental. Most children that develop other types of mental illness, such as depression, is a direct result of repeated abuse as a child. I think it all depends on the child, how they learn to deal with problems, and the care or lack there of after the event. Allow me to give you an example, my adopted daughter was abused physically and emotionally before I adopted her. She is a lovely girl, that exhibits no sign of illness although her past, if mental illness is substantially more environmental than genetic, would indicate a predisposition to developing depression, bipolar....etc.
Serenity54321 wrote:
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You and I are in agreement then. My question is only does violence contribute to mental illnesses like schizophrenia? Especially violence like child abuse?
I do take issue with doctors calling mental illness a "chemical imbalance" or a "bad genetic code". People are far more complicated than that, and those excuses only cause drug companies to shovel more pharmaceuticals down our throats.