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.
Other causes of ear hematomas are injury to the earflap (usually from a dogfight), infection or inflammation of the ear, presence of a foreign body, or even a parasite in the ear. Once bleeding under the skin begins, it creates irritation, which will make your dog shake his head even more. If the problem isn't addressed and blood and other fluids continue to accumulate in the skin, the hematoma can become quite large, even to the point of blocking off the opening of the ear canal.