Additional Study Information: We will enroll and randomly assign 30 sedentary, healthy overweight men and women to two groups. Participants will either start by consuming peanuts for 4 weeks, and then go on to exercise at high intensity intervals (HIIT) for 4 weeks, or the reverse order. We will test and compare the effect of peanuts and exercise on inflammation and heart rate variability as indicators of heart health. Specifically, we will measure inflammation in the blood because there is evidence that higher inflammation is found in heart disease patients. There is also evidence that inflammation is related to death as a result of heart disease in healthy individuals. Finally, there are ongoing trials targeting these markers to improve heart health. We hypothesize that peanuts and exercise will reduce inflammation. We also expect to find less inflammation because exercise and peanut consumption activate a part of the nervous system that has been shown to cause a similar effect.Additionally, previous studies show that inflammation involves the mitochondria in the cell, the part of the cell that produces energy. For this reason, we expect that exercise and peanuts will cause changes in the mitochondria. We will test and compare mitochondrial activity in response to peanut consumption and exercise.