性格“像变了个人”？可能是疾病信号，警惕这5种病

Core Viewpoint - The article highlights the importance of recognizing sudden personality changes as potential signals of underlying health issues, particularly brain tumors and other medical conditions that can affect emotional and cognitive functions [3]. Group 1: Case Studies - A 48-year-old man experienced significant personality changes, including memory loss and irritability, which were later diagnosed as glioblastoma, a highly aggressive brain tumor [2]. - A 66-year-old man exhibited symptoms such as loss of smell and taste, which were initially attributed to aging, but were later found to be caused by a large meningioma pressing on brain tissue [2][3]. Group 2: Medical Conditions Affecting Personality - Hyperthyroidism can lead to irritability and emotional instability, causing patients to react strongly to minor stressors [4]. - Hypothyroidism results in low energy and depressive symptoms, often misdiagnosed as depression [5]. - Hepatic encephalopathy can cause significant personality changes, including increased irritability and emotional fluctuations due to elevated ammonia levels affecting brain chemistry [6]. - Alzheimer's disease is characterized by memory loss and personality changes, including increased suspicion and irritability [7]. - Adrenal tumors can cause weight fluctuations and significant personality changes, with symptoms like rapid heartbeat and excessive sweating [8][9].