The Effect of Lavender Aromatherapy on Cognitive Function in Older Adults With Mild Cognitive Impairment

1. To analyze the therapeutic effects of lavender aromatherapy on memory function and overall cognitive function in older adults with Mild Cognitive Impairment (MCI); 2. To analyze whether lavender aromatherapy improves executive function, language ability, attention, visuospatial ability, anxiety, depression, quality of life, and sleep in older adults with MCI.

Inclusion Criteria: 1. The MCI mentioned in this study meets the diagnostic criteria proposed by the \*Chinese Expert Consensus on the Diagnosis and Treatment of Alzheimer's Disease-Derived Mild Cognitive Impairment (2021)\*: cognitive impairment reported by the patient or an informant, or identified by an experienced clinician; objective evidence of impairment in one or more cognitive domains, with episodic memory impairment being the most common; complex instrumental activities of daily living may be mildly impaired, but the ability to perform basic activities of daily living remains independent; the diagnostic criteria for dementia are not met. 2. MoCA-Beijing version scores were adjusted for education level: ≤13 for junior high school education or below, ≤19 for high school education, and ≤24 for university education or above; MMSE score \>24; ADL score \