Have you ever been in this situation? You’re sitting behind a desk and about to take the most crucial exam of your academic life (or at least that’s what it feels like). Everyone’s pens are busy scrawling while you’re staring at the questions on your paper blankly.
You probably know the answers to the questions; you just reviewed them last night. You know your brain is functioning, as you can instantly recall the menu items at your favourite restaurant. But you’re struggling to remember what you studied, and it’s frustrating.
This scenario might make you wonder: Why can I remember some things but not others? Well, here’s the answer. There are two types of memory, long-term and short-term, and they are stored very differently in the brain.
No matter how briefly a memory lasts, it must be stored in your brain. You are temporarily recording the succession of events in your life.
According to the Canadian Institutes of Health Research, short-term memory has a storage capacity of about seven items and each lasts only a few dozen seconds.
Imagine that you’re starting a new internship or job, and you’re introduced to everyone you’ll work with. You probably shake everyone’s hands, and then promptly forget who’s who. In a recent Student Health 101 survey, more than 20 percent of respondents said that while they can remember facts and figures, they have trouble with people and places. Why might that be?
Though you may register the face of someone you pass on the street, or an address you overhear someone giving out, this information quickly disappears. That is, unless you make a conscious effort to retain it, in which case you can keep the piece of information in your short-term memory for a longer period of time. For example, you can repeat a telephone number over and over again, or use a “memory trick,” like setting the number to a tune.
Mark E., a second-year student at Ontario College of Art and Design in Toronto, says, “Saying a person’s name after he or she is introduced, or picturing someone you already know with that name, can help make it stick. I use these techniques when I start a new job and have to remember the names of my new co-workers.”
Nathan shares his brain exercises. (MP4, 02:43)
While short-term memories last only for about a minute, your brain’s capacity to store long-term memories is unlimited. Once you commit something to long-term memory, it can last anywhere from days to months to years-or even for your lifetime.
Long-term memory stores all the significant events in your life, and also allows you to retain things like the meaning of words and the physical skills you’ve learned. The reasons for this originate on the cellular level. “When you want to remember things from the past, you retrieve that long-term memory. There is a molecular science around how neurons in the brain do this,” says Dr. Daniel Andreae, a psychology professor at the University of Guelph-Humber in Toronto, Ontario.
There are several factors that influence the ease with which you retrieve long-term memories. For example:
Sometimes, though, facts become distorted, and memory becomes less reliable with age. “When I try to remember what I did when I was a child, I can only picture big moments, like birthdays or family vacations,” says Stephanie T., a third-year student at Queens University in Kingston, Ontario. “I don’t remember the everyday moments that my mom tells me about, like spilling my food and fighting with my siblings.”
Here are some tips for implanting new information in your brain for the long haul. These are handy when preparing for tests:
Seon S., a fourth-year student at Carlton University in Ottawa, Ontario, relates to the almost 35 percent of Student Health 101 survey respondents who said they remember all types of things very easily. “I lucked out and don’t just remember an event but vividly picture it too. I remember most tiny details that others don’t, and I’m always the one to ace memory tests,” she says.
Not everyone is gifted with a memory like Seon’s, but there are many things you can do to improve your mental performance. It’s important to remember that the brain is an organ that in some ways is like a muscle. A strong memory depends on the health and vitality of your whole body, and exercising your brain regularly.
Janice shares her memorization strategies. (MP4, 02:34)
Here are a few tips to help strengthen your brain:
Try Something New
It’s important to challenge your brain by learning novel tasks and doing things you’ve never done before. For example, enroll in a music class, try your hand at sculpting, or even learn a new dance. Start a new hobby or learn a foreign language. (As a bonus, these will look great on your résumé.)
Exercise Your Brain
Reading, writing, and playing cards all offer your mind a chance to flex. Engaging in these activities daily keeps your brain active and can help to delay memory loss. Try completing crossword puzzles, reading a book for pleasure, or even playing a game of solitaire every day. These activities can help you retain more information and can also reduce stress.
Manage Your Stress
Speaking of which, when you’re under a lot of pressure, your brain may not function optimally. “The hippocampus plays a key role in the conversion [of information] into long-term memory. When one is continually stressed, it is affected: cells shrink or are lost. The good news is that when no longer seriously stressed, the cells regenerate,” explains Dr. Andreae.
Allow yourself the time necessary to condense information and experiences, and you’ll remember more. As Dr. Andreae says, “The capacity for remembering things is infinite.”
NAOMI LEANAGE is a third-year media studies student at the University of Guelph-Humber.
Exercise Regularly
We all know that exercise is good for our overall health, but did you know that it’s good for your brain, too? Science proves that it not only boosts your brain power (by increasing blood flow), but may also play a role in reducing your risk for Alzheimer’s disease and age-related cognitive decline.
According to the National Institute on Aging in the U.S., studies suggest that physical exercise may increase the number of small blood vessels that supply blood to the brain and raise the level of nerve growth factor (a protein key to brain health) in an area of the brain that is important to memory and learning.
Abilities vital to healthy cognition, like being able to maintain old brain network connections and make new ones, also seem to be stimulated due to exercise.....More Information.
Plus, exercise is an excellent stress-reliever. Isn’t it great how all of these things are related?
Get Plenty of Rest
Sleeping for eight to nine hours every night will help to increase your memory. Taking a nap if you need one, especially after class when you’ve learned something new, can help recharge your brain to keep it sharp for longer, too.
