Studying for the ACT or SAT? Gearing up for a test in your least favorite class? Got a college final coming up? Just need to memorize something quick? We found 5 more brain hacks to improve your memory.
Pay attention! There will be a pop quiz. (No, really, there’s a quiz at the end).
The 8 Second Rule
If you really want to lock in a piece of information, focus on it for at the very least 8 seconds–longer if possible. Uninterrupted concentration for about that long will transition information from your short term memory to your long term memory. Need to memorize a vocab word? Really focus hard on the word and its meaning for a minimum of 8 seconds and you’re more likely to remember it later.
- The word “ephemeral” means: momentary, fleeting
Clench Your Fists
Here’s a quirky trick: the next time you learn something and need to recall it later, tighten your fist. Studies are showing that if you are right-handed and clench your right fist while learning a new bit of info, you can more easily recall it later by clenching your left fist. (It’s the opposite for lefties–left fist clench while learning, right fist clench while recalling). Aim for 30-45 seconds of clenching, preferably around a stress ball.
Why? It’s all about activating different parts of the brain. By squeezing your right hand, you activate the left half of your brain–the part responsible for encoding memory. By squeezing the left, you activate the right half which helps with recall. (Again, opposite for lefties).
- Alexander Hamilton founded the United States Coast Guard.
This next tip is a tad contradictory when it comes to scientific studies, fair warning. But many studies show that chewing gum while learning something keeps your brain active and helps you concentrate.
The first prevailing theory is that the act of chewing gum helps more oxygen flow to the brain, due to the exercise of the jaw. The second is that chewing stimulates the brain’s hippocampus, which is an area that aids memory.
- Your brain is 73% water. It takes only 2% dehydration to affect your attention, memory, and other cognitive skills.
Yes, that’s right–doodle. Despite what everyone may think, doodling is actually good for your concentration! Well, at least better than drifting off into a daydream. If class ever gets boring or a lecture drones on and on, doodling will actually help keep your brain active.
In one study, a scientist played a long, dull tape of a phone message to a group of people–half of which were told to doodle during the recording. The scientist then quizzed everyone and found the doodlers remembered 29% more information than the non-doodlers!
- Doodle while listening to this video about poison dart frogs
Use Mnemonic Devices
This type of memory hack has been used since the times of Ancient Greece! There are four main types of mnemonic devices: rhymes, acronyms, imagery, and chunking.
Humans like to rhyme things. Since it’s both amusing and pleasing, we tend to remember rhymed things more easily.
- The crack in the Liberty Bell is about 1/2 inch wide and 20 and 1/2 inches long.
- Example rhyme: That cracked bell is pretty swell!
Imagery can also be used to recall information. Picturing an image and associating it with a piece of information can greatly aid recollection of that info later on.
- All angles of an acute triangle are less than 90 degrees.
- Example image: A tiny puppy, because puppies are a-cute!
We use acronyms pretty much every day of our lives–FBI, NCAA, BMW, USA, CBS, just to name a few. But in addition to shortening names, acronyms can be used as a mnemonic device to help memorize things.
- The notes on a musical scale are: EGBDF
- Every Good Boy Deserves Fudge
The last kind of device is that of chunking. Chunking is breaking down longer pieces of information into a more manageable size. Take phone numbers for example, instead of memorizing a string of numbers like 8675309, we chunk it: 867-5309.
- The first 10 digits of pi are: 3.141592653
The human brain is a fascinating and mysterious organ. Scientists are constantly making new discoveries about the brain, and psychologists are always coming up with new theories and practices.
When it comes to taking tests–whether it’s the ACT / SAT or a college final–every little trick helps. Put these tips to use, study hard, and take care of yourself to realize your testing potential. Memory can be a fickle thing, but there are ways of improving it.
Hope these tactics worked for you, because it’s time for a pop quiz! (And no scrolling back up to cheat!)
- What does the word ephemeral mean?
- Who founded the United States Coast Guard?
- What percentage of the human brain is made up of water?
- How did the poison dart frog earn its name?
- How long is the crack in the Liberty Bell?
- An acute triangle’s angles are all less than how many degrees?
- What are the letters that make up a musical scale?
- What are the first 5 digits of pi?
How did you do? (Now you have our permission to scroll up and check!)