Memory loss more common in people with blood type AB. Several research studies have pinpointed lifestyle changes individuals can make to prevent memory loss, such as keeping stress and blood sugars low, and not smoking.
A dog will shake its head under normal conditions for a few reason, such as when the dog has just gotten out of the water or to shake seeds or burrs from its ear. Even a dog hair can irritate the dog enough to make it shake its head. When your dog shakes it head, it is important to check for any foreign objects, allergic reaction and bites in its mouth, throat and ears if you can.
Dogs commonly shake when their coats are wet. Dogs tend to have a whole lotta shaking going on. When your hound shakes itself, this may be a habit, a functional behavior or a symptom. If your dog experiences uncontrolled shaking, seek veterinary advice.