Lifestyle Intervention for Improving Insulin Resistance and Concern for Health

The primary objective of this study is to test the effect of a diet and exercise program in older adults with insulin resistance and a motivation disorder known as apathy. The main questions the study aims to answer are: 1. Does the diet and exercise program improve insulin resistance and apathy? 2. Does the addition of soybean to the diet enhance the effect? Participants will be given all meals for 12 weeks and will exercise under supervision. They will undergo a test of insulin sensitivity and complete questionnaires. Researchers will compare the groups given: 1. A diet to moderate the blood glucose response that contains soybean; and 2. A diet to moderate the blood glucose response that does not contain soybean.