Your student should be taking his medication... but I guess he is using this once in a year chance to pray, to fast, and to adhere to Islam. However, as has been mentioned in the other blogs, if he suffers from severe migraines, then he needs to reconsider.... Ultimately its up to him. I was the same during my GCSE's/A levels (I think the strain of using your brain 24/7 and then eating little took its toll, but I still kept my fasts because it only happens one month of twelve) T