scorecardresearch
0 of 0 correct
0 question streak
Advertisement

According to those who have touched it, the human brain has a similar texture to...

Shutterstock
Advertisement
According to people who would know (scientists and zombies), the human brain has the same consistency as tofu. It has also been compared to custard and gelatin.

True or False: Your brain does not burn calories.

Shutterstock
Advertisement
False! At rest, your brain uses one-fifth of a calorie per minute. To be exact, we’re talking about 10.8 calories every hour or 0.18 calories each minute. Does thinking harder mean burning more calories? Unfortunately, being a mathlete won’t earn you a six pack. Most of the energy used by the brain goes toward keeping you alive. Whether you're thinking or not, your brain still controls breathing, digestion, and other essentials. Thinking hard may result in a very slight increase in caloric burn, but it’s nothing to freak out about.

Studies have shown that people can only have strong ties to a certain number of people. What is that number?

Pixabay
Advertisement
Studies have shown that people can only have strong ties to 150 people at the most.

What is the name for the phenomenon which claims that there is a limit to how many people we can have strong ties to?

Shutterstock
Advertisement
Studies have shown that people can only have strong ties to 150 people at the most. It's a phenomenon known as, "Dunbar's Number" after the British anthropologist Robin Dunbar, who first put the idea forward in the 1990s. Dunbar's claim rests on the relationship between the size of a primate's brain and the size of their social groups. He reached the number we recognize today by comparing the size of our brains to those of other apes, and then extrapolating the size of a social group which we could possibly recognize, based on how monkeys behave.

True or False: humans do not feel physical pain from damage directly to the brain.

Shutterstock
Advertisement
Despite its billions and billions of neurons, the brain can't actually feel pain from damage that occurs directly to itself. Luckily, direct-impact brain injuries are exceedingly rare.
0 of 0 correct
0 question streak

Which of these parts of the brain plays a role in recording and storing memories?

Shutterstock
Advertisement
We can't remember much of our first few years because the hippocampus wasn't developed enough to build a rich memory of events.

Roughly what percentage of a person’s bodyweight is made up of their brain?

Shutterstock
Advertisement
Your brain accounts for only 2% of your body weight, yet it uses 20% of the total oxygen and blood in your body. It's fascinating. That little grey blob weighs just about 4 pounds, and yet is quite possibly responsible for essentially all of our success as a species.

When awake, the brain produces enough electricity to power a...

Pixabay
Advertisement
When awake, the brain produces enough electricity to power a small light bulb. A typical adult human brain runs on around 12 watts per hour. Given it’s processing power, that’s actually not that much juice. IBM's Watson, the supercomputer that defeated Jeopardy! champions, depends on ninety IBM Power 750 servers, each of which requires around one thousand watts.

True or False: the light recieved by your eye is instantly processed by your brain.

Max Pixel
Advertisement
It takes about 0.2 seconds for your brain to understand the light that reaches your eye. The slight difference in time between light hitting your pupil, and your reaction to said stimulus, is a fascinating phenomenon. It's the basis for the difference in reflexes between a top-level athlete and a regular-joe, as well as one of the reasons our minds can fall prey to what we call optical illusions.

True or False: human beings have taste receptors in other parts of their body, outside of the tongue.

Flickr
Advertisement
You have taste receptors in the stomach, intestines, pancreas, lungs, anus, testicles, and brain. These non-oral taste receptors don’t come close to the tasting power of your tongue, so you probably won't be tasting your toilet paper. Interestingly, scientists discovered that taking away male rat's testicular taste receptors rendered them permanently sterile.
0 of 0 correct
0 question streak

Roughly what percentage of the distribution of instructions inside our DNA is dedicated to the brain?

Public Domain Pictures
Advertisement
In another case of brain-favoritism in human evolution, we have the distribution of instructions inside our DNA: it turns out, half of your genes describe the complex design of your brain, with the other half describing the organization of the other 98% of your body.

True or False: The man who performed Einstein’s autopsy also stole his brain.

Pixabay
Advertisement
The pathologist (Thomas Harvey) who made Einstein body's autopsy stole his brain and kept it in jars for 20 years. Dr. Harvey performed an autopsy on Einstein and removed Einstein's brain. He then cut the brain into 240 pieces. He was very protective of the brain, and although he did give several pieces to various researchers.

Which of these animals has a larger brain than most humans?

PxHere
Advertisement
Cows, whales, and elephants (in addition to many other creatures) all have much bigger brains than we do. And yet we eat steak like it's no big deal. Guess we're winning, right?

What was the name of the IBM supercomputer that was able to beat Jeopardy champions?

Shutterstock
Advertisement
BM's Watson, the supercomputer that defeated Jeopardy champions, depends on ninety IBM Power 750 servers, each of which requires around one thousand watts.

True or False: Human brains today are, on average, much larger than they were 20,000 years ago.

Pixabay
Advertisement
Human brains are 10% smaller than they were 20,000 years ago. Remember from earlier that we have no clue how human brain size affects human behaviour. I like to think we’re still getting smarter…
0 of 0 correct
0 question streak

There's a virus that attacks human DNA, and makes people less intelligent by impairing brain activity, learning and memory. What is it called?

Max Pixel
Advertisement
There's a virus that attacks human DNA, and makes people less intelligent by impairing brain activity, learning and memory. Prior to 2014, the virus, known as ATCV-1 (or Chlorella virus) , was thought to only infect algae in lakes and rivers... although now there are some who say it is possible that humans and other mammals can act as hosts.

About how long can most people go without oxygen before they experience brain damage?

Pixabay
Advertisement
Lack of oxygen in the brain for 5 to 10 minutes results in permanent brain damage. Interestingly, though, this does not hold true in every case. As with most facets of human life, the performance of your brain in this particular arena can be improved with rigorous training. Free divers are one group that does just that, frequently going without air at 10 to 15 minutes at a time, and forcing their brains to adapt. The current record for such a feat actually stands at an astounding 22 minutes.

True or False: The brain has a similar reaction to physical and mental pain.

Max Pixel
Advertisement
The brain treats rejection like physical pain, according to scientists. When you experience physical pain, your brain releases opioids into the empty space between neurons, which “dampen” pain signals. When you get rejected, your brain does the same thing.

How long does it take for the brain to react to alcohol?

Pixabay
Advertisement
It only takes 6 minutes for brain cells to react to alcohol.

True or False: Most humans only use 10% of their brain.

Shutterstock
Advertisement
“You only use 10% of your brain” was heralded as a popular-science as a truth with sexy implications. If only you could tap into that other 90%, then surely you would be a savant who remembers π to the twenty-thousandth decimal place, or perhaps even have telekinetic powers? Wrong. The truth is that humans use every part of their brain.
0 of 0 correct
0 question streak

At what point in our lives do we have the most brain cells?

Pixabay
Advertisement
We have more brain cells as a newborn baby than we will ever have again.

Violent homes have the same effect on children's brains as...

Joint Base Elmendorf-Richardson
Advertisement
Violent homes have the same effect on children's brains as combat on soldiers. For both soldiers and children from violent homes, the anterior insula and amygdala have heightened sensitivity to perceived threats. Also, both groups are more likely to suffer depression and anxiety disorders.

True or False: Men tend to have larger brains than women.

Shutterstock
Advertisement
Male brains, on average, have a total volume that is between 8% and 13% larger than female brains. Does this mean that men are smarter? Nope, not at all. While IQ isn’t a perfect measure of intellect, it’s a much better indicator than brain size. We, to be blunt, have no clue how brain size affects behaviour. We know that IQ can, at least looked at from certain angles, provide useful insights into mental capability.

Based on current research, which of these options is NOT an effect of taking a nap?

Pixabay
Advertisement
Research on naps, meditation and nature walks reveals that mental breaks increase productivity, replenish attention, solidify memories and encourage creativity. See? It's not procrastination... it's a rejuvenating moment of recalibration for your overworked brain.
About This Quiz
Brains. We’ve all got one, and yet so few of us have almost any idea how they work. Which is fair enough, when you think about: the smartest scientists on Earth are still uncovering new mysteries about the human brain every day. That being said, there are some things we know for sure. Time to see how much you know about the brain...


Featured Article
43 Scandalous Facts About Edward VIII, The King Who Lost His Crown “I wanted to be an up-to-date king. But I didn't have much time.”—Edward VIII. For such a short-reigning king, Edward VIII of the United Kingdom left behind no shortage of controversy. First, there was the…
Featured Article
People Describe Creepy Imaginary Friends from Their Childhood “I was a loner as a child. I had an imaginary friend—I didn't bother with him.”—George Carlin. Many adults had imaginary friends as children. At their best, these make-believe buddies were cute, helpful, and whimsical…


Dear reader,

Want to tell us to write facts on a topic? We’re always looking for your input! Please reach out to us to let us know what you’re interested in reading. Your suggestions can be as general or specific as you like, from “Life” to “Compact Cars and Trucks” to “A Subspecies of Capybara Called Hydrochoerus Isthmius.” We’ll get our writers on it because we want to create articles on the topics you’re interested in. Please submit feedback to contribute@factinate.com. Thanks for your time!

Do you question the accuracy of a fact you just read? At Factinate, we’re dedicated to getting things right. Our credibility is the turbo-charged engine of our success. We want our readers to trust us. Our editors are instructed to fact check thoroughly, including finding at least three references for each fact. However, despite our best efforts, we sometimes miss the mark. When we do, we depend on our loyal, helpful readers to point out how we can do better. Please let us know if a fact we’ve published is inaccurate (or even if you just suspect it’s inaccurate) by reaching out to us at contribute@factinate.com. Thanks for your help!

Warmest regards,

The Factinate team