If before a contest or some other stressful event you can not relax and sleep,then look for soothing and hypnotic properties of fresh basil.
Put 25g. fresh basil leaves in half liter of cold water and allow the concoction to boil over low heat, with the cap closed for 10 minutes.
After you cool concoction,you drink 3-4 cups throughout the day. So when it's bedtime, you can easily fall asleep. If the nervousness and anxiety is very intense, you can start the treatment it several days ago.