"Doll Therapy" has been proven to effectively help dementia patients by reducing aggressive behaviors, increasing social interaction, and delaying emotional decline! The "Laughing and Crying Baby" utilizes advanced touch-sensing technology to simulate realistic baby responses—patting the belly triggers hearty laughter, touching the cheeks prompts calling for "mama," and turning it over causes crying. Through warm interactions, it alleviates anxiety and loneliness in the elderly, stimulates emotional memory, and provides a thoughtful therapeutic solution for home care and nursing institutions.