Located in Minami-Aoyama, Minato City, the Preventive Medicine Research Institute's HCU CLINIC is a medical facility specializing in preventive medicine centered on internal medicine. They import cutting-edge genetic tests from overseas that are not yet available in Japan, conducting diagnostic examinations that evaluate and quantify bodily conditions and biological age at the cellular level, revealing details not detectable in general health checkups or comprehensive medical examinations. They offer biomarker tests to assess the degree of chronic inflammation, and tests that calculate disease risk by comparing with groups of the same chronological age, while glycation tests measure subcutaneous AGEs levels and compare them with age averages. Intestinal health and gut flora examinations, HRV to evaluate autonomic nervous system balance, stress index and fatigue degree measurements, and vascular health and aging assessments are also conducted, with functional tests that quantify skin age through spots, dullness, pores, and wrinkles. They provide a comprehensive range of examinations including blood tests for grasping overall body condition, harmful metal testing, and body composition evaluation, with English language support and acceptance of credit cards and electronic payments.