15 Very Cool Facts about the Human Brain
The Human Brain - Cool Facts
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Cool Brain Facts
The human body is an incredibly intricate system, one that continues to baffle both doctors and researchers. Despite thousands of years of medical research, bizarre and unexpected facts about the human body continue to amaze everyone. Here are 15 odd, wacky, and amazing facts about the human brain.
- Nerve impulses travel, to and from the brain, at almost 170 miles per hour. If you’ve ever wondered how you can react so fast to things around you, remember that your nerve impulses travel almost as fast as a high-powered sports car. The only difference is that your nerve impulses only have to travel a few feet.
- The brain uses roughly the same amount of power as a 25-watt light bulb. The cartoon image of a light bulb over a head is actually fairly accurate. Your brain generates as much energy as a fluorescent or LED light bulb.
- A human brain cell can remember roughly 5 times as much information as the Encyclopedia Britannica. Scientists have long argued about the human brain’s storage capacity in computer terms. It’s thought that the brain can store somewhere between 3 to 1,000 terabytes. The Library of Congress is the largest library in the world. It contains about 525 terabytes of information. Your brain might be able to store almost twice as much information!
- Your brain uses about 20% of all the oxygen that enters your bloodstream. While the human brain makes up only about 2% of our body mass, it consumes more oxygen than any other organ in the body. That’s precisely the reason it is so susceptible to damage related to oxygen deprivation. Lack of oxygen, for a mere 5-10 minutes, is enough to cause permanent brain damage.
- The human brain is much more active at night than during the day. It would be logical to conclude that our daily activities require more brain power than sleep does. In reality, the opposite is true. When your body turns off, your brain turns on.
- People with a high I.Q. dream more. If you can’t remember your last dream, that doesn’t mean you’re not smart. The average dream lasts only 2-3 seconds, so most of us don’t remember many of our dreams. In fact, the average person has 1,825 dreams each year but won’t remember most of them.
- Contrary to common belief, neurons continue to grow throughout human life. You can, in fact, teach an old dog new tricks. While the human brain doesn’t act in the same manner as tissues in other parts of the body, neurons grow throughout your entire life, and new connections are formed every time you create a memory.
- The human brain is the only organ that cannot feel pain. The brain is the pain center when you are injured. However, the brain itself does not have pain receptors, and it cannot feel pain. While your brain cannot feel pain, that doesn’t mean you can’t have a headache; the brain is surrounded by nerves that may make you feel like you have a headache.
- 80% of the human brain is water. The next time you’re feeling dehydrated, drink some water to keep your brain hydrated.
- Scientists believe that violence in the home has the same impact on a child’s brain as combat has on a soldier’s brain. Many studies confirm that children raised in violent homes tend to have greater obstacles later in life. Now, neurological studies confirm that violence changes brain chemistry.
- The pathologist who conducted an autopsy on Albert Einstein stole his brain and kept it hidden, in a jar, for twenty years. While the human brain is well over three times as big as the brain of other mammals of similar size, Einstein’s brain was slightly below average, in weight, for humans. The average human brain weighs 3 pounds; Einstein’s brain weighed only 2.71 pounds.
- The average person has about 70,000 thoughts per day. Your brain is very active in the day and even more active at night.
- The brain contains the longest-lived cells in the body. Cells in the human brain can live an entire lifetime.
- After 30 years of age, the brain shrinks a quarter of a percent in mass each year. By age 80, the average human brain loses a little over 12 percent of its mass.
- Babies lose about half of their neurons before they are born. This process is often referred to as pruning, and it may eliminate neurons that do not receive sufficient input from other neurons.
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