Laughter-imitation Therapy (LIT) is a study designed to help older adults in nursing homes feel mentally healthier. It uses laughter-imitation, where participants practice pretending to laugh, which can actually make them feel better! This study will last for about one month. Participants will practice laughing for just 3 minutes each day, totaling 21 minutes per week. A research assistant will help them learn how to do it and check in on them during the first two weeks.

During the study, researchers will use different tests to see if this therapy helps improve happiness, reduce depression, and even improve sleep quality. These tests include the World Health Organization Five Well-Being Index (WHO-5) and the Geriatric Depression Scale (GDS), among others.

• Study lasts for about 1 month with daily 3-minute sessions.
• A research assistant will provide support during the first 2 weeks.
• Participants will be evaluated using various health and happiness scales.

The goal is to see if this simple practice can help older adults feel happier and healthier, making it an easy and fun way to promote mental wellness.