Moreover, BDNF is involved in long‐term potentiation in the hippocampus for learning and memory.[105] BDNF is considered to be a potential diagnostic biomarker for both mood and anxiety disorders, schizophrenia, epilepsy, and even motor movement disorders like Alzheimer's and Parkinson's dementia.[34, 106, 107] Since psychological disorders are multifaceted in etiology and heterogenous in symptom expression, it is practically not possible to dote one contributory biomarker for a specific illness. The gene discussed is BDNF; the disease is schizophrenia.