The probability of 10 diseases occurring within 4 years is predicted by inputting the results of medical examinations, such as blood test results, and answering questions about lifestyle. The diseases predicted are "colon cancer, liver cancer, lung cancer, prostate cancer, stomach cancer, heart disease, dementia, stroke, diabetes, and breast cancer. The system can also record daily weight, BMI, blood pressure, etc., so it can be used as a health handbook.