Content：Introduction，Geriatric syndrome, Weak elderly and Sarcopenia, Comprehensive geriatric assessment, Rational drug use for the elderly , Alzheimer's Disease, Geriatric hypertension, Obstructive sleep apnea syndrome, Senile diabetes mellitus, Lower urinary tract symptoms in the eldly. The purpose of this course is to enable students to deepen the understanding of the pathophysiological changes and functional decline that occur in various organs and systems of the elderly by studying the basic theoretical knowledge of geriatric medicine and the clinical characteristics and diagnosis and treatment principles of common diseases in the elderly, cultivate students' systematic thinking concept, humanistic spirit concept, and health management concept; cultivate students' ability to analyze problems and solve practical problems; cultivate students' thought of serving geriatric patients wholeheartedly, establish a serious, responsible, patient and meticulous good medical ethics, and lay a certain foundation for them to engage in geriatric medicine, general medicine, or specialist medicine in the future.