I do the crossword every morning. Not because I think it’s saving my brain. Because I like the ritual. The coffee. The pen. The quiet. The small satisfaction of a five-letter word for “ancient Peruvian” that finally clicks.
But here’s what I’ve noticed. My mother did crosswords too. Every day. For decades. And somewhere in her late seventies, her brain started slipping anyway. The puzzles got harder. Then impossible. Then she stopped trying. The crossword didn’t save her. It just made her feel worse when she couldn’t do it anymore.
That scared me. Not the forgetting. The idea that I might be doing the thing everyone recommends—keeping my brain active—and it might not matter at all.
I’ve spent the last ten years reading everything I can about brain health. Not the pop-science stuff. The actual research. The studies that don’t make it into the morning news because they’re not exciting enough. And here’s what I’ve found. The crossword is fine. It’s not nothing. But it’s not what’s saving my brain. If anything is.
Here’s what actually matters. And none of it is what the brain-training apps are selling.
The real brain exercise is learning something new, not doing something familiar
Crosswords are familiar. I’ve done them for years. I know the patterns. The common words. The tricks. My brain is efficient at crosswords. Efficiency is not the same as growth.
Your brain grows when you do something new. Something hard. Something that makes you feel stupid. That’s not a metaphor. That’s neuroplasticity. When you learn a new skill, your brain builds new connections. When you repeat an old skill, your brain just uses the connections it already has.
I started learning Spanish at fifty-eight. I’m terrible at it. Absolutely terrible. Three years in, and I still mix up “ser” and “estar” with embarrassing regularity. But that’s the point. I’m terrible. My brain is struggling. That struggle is the thing. Not the achievement. The struggle.
I noticed it after about six months. I was walking down the street, trying to conjugate a verb in my head, and I felt something I hadn’t felt in years. A kind of mental alertness. A sharpness. Not because I was getting good at Spanish. Because my brain was working. Really working. The way it used to work when I was learning something new in my twenties.
The crossword never gave me that. It gave me comfort. Not growth.
The people around you matter more than the puzzles you solve
There’s a study out of Harvard that followed people for decades. The strongest predictor of cognitive decline? Social isolation. Not genetics. Not diet. Not education. Loneliness. Being alone, without meaningful connection, was more damaging than almost anything else.
I think about my mother. She did crosswords. But after my father died, she spent most of her time alone. Her social world shrank. Then her cognitive world shrank with it.
I made a change after reading that study. I started investing in my people. Not more people. Better time with the people I already had. Dinner with friends. Weekly phone calls with my siblings. A walking group that meets three times a week. Not because I’m social. I’m not. I’m a hermit by nature. But I forced myself. Because the data is overwhelming. Your brain needs other brains. It needs conversation. It needs disagreement. It needs laughter. It needs the unpredictable back-and-forth that no app can simulate.
My walking group is three old guys who complain about everything. We solve none of the world’s problems. But my brain is on when I’m with them. Listening. Responding. Arguing. Laughing. That’s the workout. Not the crossword.
Your brain lives in your body. Treat your body like it matters
I used to think brain health was about what happened between my ears. Then I learned about blood flow. Your brain is the hungriest organ in your body. It demands twenty percent of your blood flow. Twenty percent. And blood flow depends on your heart, your arteries, your fitness, your movement.
When I started running at fifty-two, I thought I was doing it for my heart. I was doing it for my brain too. I just didn’t know it yet.
The research is clear. Cardiovascular fitness is one of the strongest predictors of cognitive health. Not because it makes you smarter. Because it keeps the pipes clean. Because it keeps the blood moving. Because your brain needs oxygen and glucose and nutrients, and the only way they get there is through a functioning vascular system.
I run. I walk. I do the strength stuff I wrote about in the last piece. Not because I’m training for anything. Because my brain is in my body. And if my body is a mess, my brain is a mess.
Sleep is when your brain takes out the trash
I was terrible at sleep for most of my life. Treated it like a waste of time. Something to power through. Something you could catch up on later. Then I learned about the glymphatic system. Discovered about ten years ago. Your brain has a cleaning system. It only runs when you sleep. Deep sleep. That’s when your brain flushes out the waste products that build up during the day. Including the proteins associated with dementia.
I read that and thought about every night I’d shorted myself. Every “I’ll sleep when I’m dead.” You know what? When you don’t sleep, you’re closer to dead. Not dramatically. Not immediately. But incrementally. Those proteins build up. Your brain doesn’t get cleaned. And over decades, that matters.
I protect my sleep now like it’s my job. Same bedtime. No screens an hour before. Dark room. Cool room. I’m boring about it. I’m boring and well-rested. And I don’t apologize for either.
Stress is not a personality trait. It’s a brain killer
I spent my forties proud of how stressed I was. Look at me. So busy. So important. So necessary. That wasn’t strength. That was cortisol. And cortisol, over time, damages the hippocampus. That’s the part of your brain that forms new memories.
The research on this is brutal. Chronic stress doesn’t just make you feel bad. It physically damages your brain. It shrinks the areas responsible for memory and learning. It makes it harder to form new connections. It accelerates cognitive decline.
I had to learn to let things go. Not because I’m enlightened. Because I saw the data. I started meditating at fifty-five. Ten minutes a day. Nothing mystical. Just sitting, breathing, letting my nervous system settle. I do it because the alternative is letting stress eat my brain from the inside out.
I still get stressed. I’m not a monk. But I don’t wear it as a badge anymore. I treat it like what it is. A threat. Something to manage. Not something to be proud of.
Purpose might be the biggest one
Here’s the thing nobody talks about. Your brain needs a reason to keep going. Not just stimulation. Meaning.
There’s research on this too. People who have a sense of purpose—who feel needed, who feel like they matter, who feel like they’re contributing to something larger than themselves—have slower cognitive decline. Even controlling for everything else. Purpose matters.
I found mine in mentoring. Young people in my field. People who need what I know. Not because I’m brilliant. Because I’ve been doing this for forty years, and I have things to pass on. That feeling of being useful? That’s brain food. Real brain food.
You don’t have to mentor. You can volunteer. You can help with grandkids. You can be the person who shows up. The person people count on. That feeling of mattering? It keeps your brain alive in ways that crosswords never will.
So I still do the crossword
Every morning. Coffee. Pen. Quiet. I still enjoy it. I’m not stopping.
But I don’t pretend it’s saving me. It’s a habit. A comfort. A way to start the day. That’s fine. That’s enough.
What’s saving me is the Spanish I’m terrible at. The walking group of old complainers. The running that keeps my blood moving. The sleep I protect like a dragon with gold. The meditation that keeps stress from eating my hippocampus. The young people I mentor, who make me feel like I still matter.
Those are the things. They’re not sexy. You can’t sell them as an app. You can’t do them in fifteen minutes a day and call it done. They’re investments. Slow. Unsexy. Cumulative.
The crossword is fine. But it’s not the workout. It’s the warm-up. The real workout is harder. It’s learning things that make you feel stupid. It’s showing up for people when you’d rather stay home. It’s moving your body even when you’re tired. It’s going to bed on time like a grown adult. It’s managing your stress instead of bragging about it. It’s finding a reason to matter.
I’m sixty-one. My mother lost her brain in her seventies. I don’t know if I’ll do better. Nobody knows. The research is honest about that. There are no guarantees. No magic bullets. No app that will save you.
But I know what the odds say. And the odds say that the person learning Spanish, walking with friends, running, sleeping, meditating, mentoring—that person has better odds than the person doing nothing but crosswords.
So I do both. The crossword for the ritual. The rest for the odds.
It’s not exciting. It’s not a revolution. It’s just the slow, unglamorous work of keeping a brain alive in a body that’s trying to cooperate.
And when I forget a word in Spanish—which I do, constantly—I don’t panic. I look it up. I learn it again. That’s the work. That’s the whole thing.
Learning it again. Over and over. While I still can.