Brachycephalic breeds (dogs with short snouts), such as Bulldogs, French Bulldogs, Boston Terriers, Shih-Tzus, etc are predisposed to upper airway obstruction due to their short noses and small airways. Dogs that have BOAS usually have a history of fairly severe snoring, may have variable degrees of exercise intolerance, and may breathe through their mouths more often than dogs without this disease. Brachycephalic Obstructive Airway Syndrome is associated with genetics and caused by abnormalities of these breeds’ anatomy, including small nares (nasal openings), and elongated soft palates, which act as curtains which interfere with the opening into the trachea (or windpipe). These dogs are also predisposed to overheating on warm days because they have a difficult time cooling themselves. Treatment of BOAS (also known as Brachycephalic Surgery) usually includes opening of the nasal passages and removal of the extra tissue of the soft palate. These procedures are best done when the dog is young, to prevent additional problems with the airway (such as laryngeal collapse).