Sunday, February 1, 2009

Some of the amazing things people can do just by thinking.

Amazing Mind
The brain is an extraordinary part of the human body, controlling the central nervous system and giving rise to the conscious mind. Some people's brains have the ability to do extraordinary mental tasks, such as memorize copious amounts of information or recall days of the week from years ago. Learn about how the brain functions, how the mind works and some of the amazing things people can do just by thinking.

Transient global amnesia
Transient global amnesia is a sudden, temporary episode of memory loss that can't be attributed to a more common neurological condition, such as epilepsy, transient ischemic attack, stroke or head injury. During an episode of transient global amnesia, your recall of recent events simply vanishes, so you can't remember where you are or how you got there. You may also draw a blank when asked to remember things that happened a day, a month or even a year ago. You do remember who you are, and you recognize family members and others you have known for a long time, but that knowledge doesn't make your memory loss any less disturbing.
Transient global amnesia would be even more distressing if it recurred more often or lasted longer than it does. The condition is rare to start with, and among the few who do have one episode, a second episode is uncommon. Also, episodes of transient global amnesia last only six hours, on average — although an episode of any length is frightening to witness or experience.
When an episode of transient global amnesia is over, you remember nothing that happened while your memory was impaired, and you might not recall the hours beforehand. Otherwise, though, your memory is fine.

Mild cognitive impairment
Mild cognitive impairment is a transition stage between the cognitive decline of normal aging and the more serious problems caused by Alzheimer's disease.
The disorder can affect many areas of thought and action — such as language, attention, reasoning, judgment, reading and writing. However, the most common variety of mild cognitive impairment causes memory problems.
According to the American College of Physicians, mild cognitive impairment affects about 20 percent of the population over 70. Many people with mild cognitive impairment eventually develop Alzheimer's disease, although some remain stable and others even return to normal.
The forgetfulness of normal aging is minor. You misplace your car keys or lose your car in the parking garage. Perhaps you can't remember the name of a former co-worker when you meet unexpectedly at the grocery store. This is nothing to worry about.
But red flags should go up if you start forgetting things you typically remember, such as doctor's appointments or your weekly pinochle game. This happens to everyone now and then, but if a pattern develops, it could be a symptom of mild cognitive impairment.
Commonly used criteria for a diagnosis of mild cognitive impairment are:
Deficient memory, preferably confirmed by another person
Essentially normal judgment, perception and reasoning skills
Largely normal activities of daily living
Reduced performance on cognitive tests, compared with other people of similar age and educational background
People with mild cognitive impairment may also experience:

Lifestyle and home remedies

Study results have been mixed about whether the following activities can prevent or reverse mild cognitive impairment. But they can be part of a healthy lifestyle for older people with or without mild cognitive impairment.
Exercise your muscles. Physical exercise may help reduce your risk of developing memory problems.
Exercise your brain. Engaging in intellectually challenging activities has been associated with better memory skills.
Avoid isolation. People who have a limited social network may have a much greater risk of developing dementia.
Sleep well. Memory problems have been associated with sleep disorders. Discuss with your doctor any problems you have sleeping.

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