"Each of our cells holds a set of biological instructions (our genes). The creation and growth of cells and the proteins inside of them are activated by our genetics. As we grow during pregnancy, our genetic blueprints tell our cells to separate into different types of cells that then grow into different organs, such as our brain. From the growth of our physical command centre (our brain) comes the scaffolding of how we are able to form thoughts and see the world."
"Schizophrenia and bipolar disorder are not caused by one gene. They are referred to as "polygenic" conditions, meaning that they are influenced by many different genes. There are many small changes in a person's DNA that will increase a person's chances of developing schizophrenia or bipolar disorder. DNA (Deoxyribonucleic acid) is a biological code in each cell that is made up of four different types of building blocks."
Genetic instructions in every cell guide development and the formation of the brain, creating the framework for thought and perception. When genetic blueprints contribute to dysfunction, individuals can experience hallucinations, elevated moods, and delusions. Schizophrenia and bipolar disorder are influenced by many small DNA changes rather than a single gene, making them polygenic. Some associated changes are single-base differences. Large studies have identified hundreds of such variants linked to each condition. Many genetic changes overlap between schizophrenia and bipolar disorder, indicating biological similarities despite distinct clinical presentations.
Read at Psychology Today
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