If you can’t teach your old dog new tricks, it might be a bad sign.
More in Watch Now: Micronutrients you may be missing, and more videos to improve your life (3 of 14)
Just like people, dogs can get dementia as they age. But there are things that can be done to ease, slow or even stave off dogs' cognitive decline.
Check out some of the micronutrients you may be missing in your diet, how to make car rides …
Get up-to-the-minute news sent straight to your device.