Keep Learning: How Novelty Keeps the Aging Brain Sharp
We have all heard the phrase "use it or lose it," and when it comes to
the brain, there is real truth in it. But researchers have discovered
something more specific and far more interesting. It is not simply
staying busy that keeps the mind sharp as we age. It is the particular
magic of doing something genuinely new. Learning a fresh skill, one that
is unfamiliar and even a little difficult, appears to be one of the
most powerful things we can do for an aging brain. Here is what the
science shows, and how to put it to work in your own life.
Your Brain Never Stops Being Changeable
For a long time, people believed the brain was more or less fixed by
adulthood, and that from middle age onward it could only decline. We now
know this is simply not true. The brain remains capable of change and
growth throughout our entire lives, a wonderful quality that scientists
call neuroplasticity.
The idea is beautifully captured in a phrase brain researchers like to
use: neurons that fire together, wire together. Every time you learn
something, the cells in your brain form new connections and strengthen
existing ones, physically reshaping the organ itself. This ability does
slow down somewhat with age, but it never disappears. Your brain at 70,
or 80, is still able to rewire itself in response to what you ask of it.
The question is simply what you choose to ask.
The Study That Revealed the Secret
One landmark experiment showed just how much this matters, and
pinpointed exactly what kind of activity does the trick. Researchers
took a group of older adults and divided them at random. One group spent
their time on genuinely demanding new skills, learning digital
photography or quilting from scratch, activities that stretched their
memory and thinking hard. The other group did pleasant but undemanding
things, socializing or doing simple, familiar tasks.
After three months, the difference was clear. Only the group that had
tackled the challenging new skills showed real improvements in memory
and in the efficiency of their brains. Simply keeping busy and being
social, enjoyable as it was, did not produce the same gains. And
remarkably, some of the benefits in the learning group were still
measurable a year later.
The lesson was unmistakable. It is not enough to keep the mind occupied. To truly sharpen it, we need to challenge it with something new.
Why Novelty Is the Key Ingredient
This is the heart of the matter, and it surprises many people. Consider
the crossword puzzle you have done every morning for thirty years. It is
a fine habit and good fun, but if you are already an expert, you are
mostly exercising pathways your brain built long ago. You are running
along familiar tracks rather than laying down new ones.
Genuine novelty is different. When you attempt something you have never
done before, something that leaves you fumbling like a beginner, your
brain is forced to build entirely new connections to cope. That
effortful, slightly uncomfortable feeling of being a novice again is not
a sign of failure. It is the very feeling of your brain growing. The
activities that help most are the ones that pull you out of your comfort
zone and make you concentrate, struggle a little, and slowly improve.
Building Your "Cognitive Reserve"
There is another reason all this matters, and it has to do with
long-term protection. Scientists talk about something called cognitive
reserve, which you can think of as a kind of savings account for the
brain. A lifetime of learning and mental challenge builds up this
reserve, and the more of it you have, the better your brain can cope
with the wear of aging, and even withstand the changes of diseases like
Alzheimer's, holding off symptoms for longer.
The encouraging part is that you can keep adding to that reserve at any
age. Every new skill you learn is another deposit in the account,
strengthening your brain's resilience for the years ahead. It is never
too late to start saving.
Wonderful Things to Learn
So what should you take up? The best choice is something that genuinely appeals to you, since enjoyment keeps you going, and that offers real challenge and novelty. Research points to several especially rich options:
A new language. One of the very best brain workouts there is. Learning a language later in life has been shown to sharpen attention, memory, and mental flexibility, and lifelong bilingualism is linked with a later onset of dementia. Even reaching a modest level brings benefits, and it makes travel a joy.
A musical instrument. Music is a perfect brain exercise because it combines the two key ingredients, novelty and practice, while engaging your hearing, your hands, and your emotions all at once. It is never too late to pick up a piano, a guitar, or a ukulele.
A hands-on craft or art. Photography, painting, pottery, quilting, woodworking, and knitting all demand focus, coordination, and problem-solving. These were exactly the kinds of skills that produced such striking results in the research.
Dancing. A marvelous all-rounder, since it asks your brain to learn
and remember steps while your body moves and you enjoy the company of
others, all at the same time.
Technology and digital skills. Learning to use a new device,
video-call your grandchildren, or explore a new app is genuinely novel
mental work, with the bonus of keeping you connected to the modern
world.
A new game or pastime. Chess, bridge, mahjong, or any strategy game you have not played before offers fresh challenge, especially in the company of others.
How to Learn Well
A few simple principles will help you get the most from whatever you choose, and enjoy the journey more too:
Pick something truly new. Favor a skill you have never tried over a polished version of something you already do well. The unfamiliarity is the point.
Be patient and consistent. Rewiring the brain takes time, and a little practice most days does far more good than an occasional marathon. Small and steady wins.
Make peace with being a beginner. You will feel clumsy and make
mistakes, and that is exactly as it should be. Gently working through
your errors is precisely what forges the strongest new connections.
Engage more of yourself. Learning sticks better when it involves
several senses at once, seeing, hearing, saying, and doing, rather than
just reading about it.
Learn with others when you can. A class or a group adds the powerful bonus of social connection, which is itself a boon for the aging brain, and helps keep you motivated.
Follow your curiosity. The best subject is one that genuinely delights you, because you are far more likely to stick with something you love.
A Little Honesty, and a Lot of Encouragement
It is only fair to say that learning may feel slower than it did in your twenties. The brain's rewiring becomes a little less efficient with the years, so a new language or a new tune may take more repetition to sink in. Please do not let that discourage you. That slower pace does not mean you cannot learn. It simply means the effort itself, the very act of reaching and stretching, is doing your brain good.
Learning something new is not a magic cure, and it works best as one
piece of a healthy-brain life that also includes physical activity, good
sleep, a wholesome diet, and staying connected to other people. But of
all the things within our control, few are as enjoyable, or as
rewarding, as the simple act of learning.