Our bodies are machines and keeping them healthily fueled can make a huge difference in our resistance to stress. Eating large meals throughout the day is hard on your metabolism, overall energy and can lead to weight gain (which can be stressful), so focus on eating small meals throughout the day. This will keep your energy up and mind focused. Snack on nuts, fruit and even dark chocolate (it contains plenty of antioxidants). Avoid large meals in the middle of the day like that cheeseburger and fries for lunch because heavy greasy foods can slow your performance.