1. Understanding Stroke Slideshow Pictures
2. Take the Stroke Quiz
3. Slideshow: Atrial Fibrillation Causes, Tests, and Treatment

Some slowing of thinking processes is normal in aging. However, any change in thinking, memory, reasoning, attention, grooming, behavior, or personality that interferes with your ability to care for yourself, maintain health and safety, or participate in activities that you enjoy warrants a visit to your health care provider.

An early diagnosis allows treatment to begin earlier in the disease, when it has the best chance of offering significant symptom relief. Early diagnosis also allows you to plan activities and to arrange for care while you can still take part in making decisions.