Article: A lack of sleep can cause excess stress, which can affect blood pressure levels during your exam. Aim to get at least 8 to 9 hours of healthy, restful sleep the night before your exam. Try to do something to relax before bed, like taking a warm bath. Avoid electronic screens in the hours leading up to bedtime, as the blue light can stimulate brain activity that makes sleeping difficult. If you're having trouble sleeping for more than 20 minutes, get up and read a book until you begin to feel sleepy. While regular physical activity is an important part of a healthy lifestyle, exercising before your exam can actually lead to inaccurate cholesterol readings. Try to avoid working out within the 24 hours leading up to your exam. Avoiding food or caffeine in the morning of the exam can help. Your blood pressure and any other exams or blood work required can be negatively affected by food and stimulants.  As stated, coffee can skew blood pressure readings so do not indulge in any caffeine intake until after exams are complete. Fasting at least four hours before blood tests can yield better results. Try to schedule an exam early in the morning and have a healthy meal the night before. Then, skip breakfast and go straight to your exam. If you're not eating or drinking coffee, producing a urine sample might prove difficult. Try having a glass of water before you leave for the exam. You'll likely end up needing to urinate around the time you arrive for the exam and a urine sample is usually requested early on.
What is a summary of what this article is about?
Sleep well the night before. Do not exercise before the exam. Skip breakfast and coffee. Have a glass of water.