Avoid stressful people.
Stress actually is contagious. During exam week, resist the urge to have a study session with your super-tense friend, especially if she’s complaining about all the work she has to do and breaking pencils all over the place. Her stress will only add to your stress.
Eat healthy and exercise.
This seems like a no-brainer, but it’s a wonder how many people forget it. Skip the sugar, which will make you crash, and go for snacks like granola bars, healthy cereal or fruits and veggies to keep your blood sugar stable. If you’re studying for a long period of time, eat some protein too. Also, try to get some form of exercise. Even a 10 minute walk will leave you calmer and more focused.