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• The adult human brain weighs about three pounds.

• The adult human brain is about 2 percent of one's total body weight.

• The average human brain is 140 mm wide and 167 mm long.

• The human brain has about 100 billion neurons.

• Neurons multiply at a rate of 250,000 neurons per minute during early pregnancy.

• Unconsciousness will occur eight to 10 seconds after loss of blood supply to the brain.

(Source: University of Washington)

MEMORY TRICKS: Eric H. Chudler, Ph.D., from the University of Washington in Seattle, says you can sharpen your memory with a little practice. "Memory is not a fixed thing," says Chudler. "It can be improved over time."

• Chaining: Chudler recommends trying the "chaining" method when trying to remember certain objects. The idea is to make a mental picture of the items for better recall. "The more bizarre the image that you can come up with, the easier it will be for you to remember."  For example, if you are trying to remember the words "book," "pencil," "apple," and "car," you might want to visualize a book with a pencil going through it. You can also picture that pencil sticking through the apple. Then, you can picture the pencil sticking through the book and the apple sitting in a car as it's driving down the street.

• Chunking: Another "trick" to remember a list of numbers is to "chunk" them together. This means combining them. For example, if you are trying to remember the three numbers 1, 5 and 6, try to visualize them as "156." Dr. Chudler says it's easier to remember one chunk than three separate numbers.

• Sleep: Dr. Chudler says sleep is also very important for a good memory. "Sleep is very, very important to consolidate information that we learned the day before," he explained.

• Catchy phrases: Dr. Chudler says you can help yourself remember lists of items by coming up with catchy phrases. One popular "trick" for remembering the planets in order is to use a phrase that has each planet's first letter in it. "My Very Excellent Mom Just Served Us Nine Pizzas" is the phrase that helps some. Each first letter represents the first letter of a planet. So, the "m" in "my" stands for Mercury. "V" stands for Venus … and so on.

 For More Information, Contact:

Eric H. Chudler, Ph.D.

University of Washington

Seattle, WA

chudler@u.washington.edu

http://faculty.washington.edu/chudler/neurok.html