(CDS) Cognitive Dysfunction Syndrome Some of the signs once thought of as simply “old age” may actually be signs of a medical condition known as canine Cognitive Dysfunction Syndrome (CDS).  CDS is caused by physical and chemical changes that affect the brain function in older dogs.  You will probably be the first to notice signs of CDS, since you are the one closest to your dog.  If you notice changes in your older dog’s habits or behavior, be sure to talk with your veterinarian.  There are herbs and medicines available to brighten your dog’s golden years.   Above all, resist the urge to tell yourself that your dog is “just getting old.”  Typical signs of CDS are: Disorientation:  wanders aimlessly; appears lost or confused in house or yard; gets stuck in corners or under/behind furniture; stares into space or at walls; has difficulty finding the door or stands at the hinge side of the door; does not recognize familiar people; does not respond to verbal cues or their name; or may appear to forget reason for going outdoors. Interaction with family members:  seeks attention less often; less likely to stand for petting; walks away while being petted; less enthusiasm upon greeting; no longer greets family members. Activity and sleep:  sleeps more during the day; sleeps less during the night; decrease in purposeful activity; increase in wandering or pacing; barks at night for no reason. Housetraining: urinates indoors; has accidents indoors soon after being outside; does not ask to go outside.