Question 2 of 21

What's brain plasticity?

... The brain has the ability to learn and adapt throughout your whole life.

Question 3 of 21

Are people either right-brained or left-brained?

... The two sides of your brain are co-dependent. It is true that you may use certain areas of your brain more (the creative area if you're an artist or the logical area if you do math), but these areas are usually connected and depend on the opposite side of the brain.

Question 4 of 21

Who was the first to propose that the brain was the seat of intelligence?

... Both Hippocrates and Plato believed intelligence was rooted in the brain, but Hippocrates started teaching this decades earlier. Aristotle believed that the seat of intelligence was the heart.

Question 5 of 21

What vitamins or supplements can help brain function?

... A well-balanced diet that contains all vitamins and minerals is important, but ginkgo in particular has been shown in studies to improve memory, help with concentration and enhance cognitive abilities.

Question 6 of 21

How does stress affect memory?

... Stress affects concentration. When you're stressed, you have a million thoughts racing through your head, interfering with concentration and your ability to remember new information.

Question 7 of 21

What types of books stimulate your brain more?

... Reading challenges your brain, no matter what you're reading. For an even bigger challenge, read a book from a different genre that you normally would not choose.

Question 8 of 21

Which of the following does NOT improve brain fitness?

... Activities that make your brain work improve its capacity to learn. Watching TV is not challenging enough to make a difference.

Question 9 of 21

The left side of the brain controls which side of your body?

... An injury to the left side of your brain will cause physical effects to the right side of your body.

Question 10 of 21

Most instances of memory lapses are caused by ______ .

... Your IQ has no effect on your memory. Alzheimer's and other diseases affect your memory, but the most common cause of memory lapses is plain and simple aging.

Question 11 of 21

Nerve impulses to and from the brain travel at what speed?

... Nothing we know can travel at the speed of light (except, well, light), but 170 miles per hour (274 kilometers per hour) is enough to let your brain know immediately that you hurt your toe and that a pain signal should be triggered.

Question 12 of 21

Your brain uses how much of the oxygen you take in?

... Twenty percent of the oxygen in your bloodstream is rerouted to keep your brain working properly.

Question 13 of 21

How do you add neurons to your brain?

... Keep your brain active and you can increase the number of neurons throughout your whole life.

Question 14 of 21

What percentage of people in the U.S. are diagnosed with Alzheimer's disease after they turn 65?

... Alzheimer's disease, which is diagnosed in 15 percent of Americans aged 65 or older, affects memory, cognitive abilities and your capacity to learn and process information.

Question 15 of 21

What causes up to 40 percent of all brain injuries?

... According to the Brain Injury Association USA, 35 to 40 percent of all brain injuries are caused by motor vehicle accidents.

Question 16 of 21

What food is rich in antioxidants and nutrients that might help keep your brain younger?

... Most fruits and vegetables have antioxidant properties that can help keep your brain young and healthy. Berries in particular are good sources of these antioxidants.

Question 17 of 21

How much does the human brain weigh?

... The average human brain weighs about 1,300-1,400 grams. The brain of a newborn human weighs as little as 350 grams.

Question 18 of 21

Can playing games keep your brain young?

... Crosswords, puzzles and even video games that require you to solve riddles can all train and improve your brain.

Question 19 of 21

Does repetition really help you remember things?

... You don't need to repeat something over and over for hours to make it part of your long-term memory, but you do need to review the information every few hours or days until it becomes part of your permanent knowledge.

Question 20 of 21

What animal has the lightest brain, weighing only 0.1 grams?

... All four of these animals have brains that weigh 1 gram or less, but the viper weighs in with the smallest.

Question 21 of 21

Do we remember pictures better than words?

... Our memories work differently. It also depends on what you're trying to remember. For geography, pictures might be better than words, for example.

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