BIO - EXPLAINING OCD

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    • Genetic explanation - focuses on the way that genes or genetic material may create vulnerability to OCD.
    • Neural explanation - explains how brain activity and structure can influence the onset of OCD.
    • Diathesis stress model - suggests that psychological disorders arise from the interaction of underlying biological vulnerability (diathesis) and external stressors or the influence of the environment.
    • Co-morbidity - the simultaneous presence of two or more diseases or medical conditions in a patient.
    • Serotonin - neurotransmitter that regulates mood, sleep, digestion and other functions.
    • Neurotransmitter - chemical messengers that allow communication between neurons in the brain and the nervous system.
    • Neuron - a specialised cell transmitting nerve impulses
    • Polygenic - having more than one source for a disorder.
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