With the aging of society, the prevalence of dementia and Parkinson’s disease is increasing. Early detection and preventive treatment of these diseases are important to address this problem. Most Parkinson’s patients have some form of movement disorder, and regular visits to the hospital can be burdensome for the patient and their family. It is also estimated that 90% of patients with Parkinson’s disease have some type of speech disorder. Our research aimed to use voice to estimate health status. Voice analysis has the advantage of being noninvasive and can be remotely controlled using a smartphone or other devices. If Parkinson’s disease patients’ conditions can be monitored remotely, it will reduce the burden of patient visits to the hospital.