In many kids who are diagnosed with ADD/ADHD, having their tonsils and adenoids removed can greatly reduce the symptoms
. The reasoning behind this is that they have enlarged tonsils/adenoids that cause sleep apnea
. Whether they realize it or not, they are waking up very briefly many times a night and thus are not getting well rested. The following day, they are tired but know they need to stay awake or, in young children, they just really want to stay awake.