https://www.news-medical.net/health/The-Genetics-of-Mental-Disorder.aspx
No one psychiatric or mental disorder has a full 100% genetic basis orheritability, and many environmental factors may strongly influence thelikelihood of developing a particular disorder or not - despite the presence orabsence of genetic elements.
A large proportion of mental disorders do have a high degree of heritability -that is that the risk of having a disorder if another family member has itsignificantly increases.
Mental disorders can arise at any point in life e.g., from birth - such as ASD, orlater in life in combination with environmental triggers - such as bipolardisorder.
One of the most highly genetically inherited psychiatric disorders is bipolardisorder which may affect as much as 1-4% of the population.
Like bipolar disorder, having a first-degree relative with the disorder drasticallyincreases the risk of developing schizophrenia later in life - thoughenvironmental factors are also incredibly important.
Many mutations, polymorphisms and epigenetic changes that occur in ASD, alsooccur in bipolar disorder and schizophrenia as well as other mental disorders.
In summary, mental disorders such as bipolar disorder, schizophrenia and ASDhave strong genetic bases that can be directly inherited from an affectedparent, or for de novo during development.
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