Draco shook his head at that, unable to keep the smile off his lips as he did so. He enjoyed being around Harry a lot more than he enjoyed being around the other counsellors, except for Pansy of course, and this was part of the reason for that. Harry was easy to be around and didn't take things too seriously. It was pretty hard to misstep around him.<br/>"Yeah, no" he said with a soft smile, simply unable to stop. It was his passion to be talking about medicine after all, even if he doubted that Harry really cared about such things. "It's quite uncommon in kids and the older you get the more common it gets. As in, if you are over 60 it's fairly common."