Alex’s shoulders had been slumping, his eyes rolling, and his head jerking. And now his hand was up. So I stopped by his desk.
“I gotta stand in the back of the room,” he said. “Can’t keep my eyes open.”
This was a daily battle. And not just for Alex. They all had their reasons: parents fighting late into the night, video games that just wouldn’t let loose, texting friends for hours in bed, late sports events and then homework to do, worrying—about world hunger or a coming war or that a boyfriend was about to breakup.
“You need to find a way to sleep,” I told Alex that day before I sent him to stand at the back of the room.
I wish I had known then what a recent study has shown about the importance of sleep. Perhaps the results of this study would have impacted Alex more than I did.
Sleep, the study found, is when the brain takes out the trash.
All day while the brain is awake, garbage builds up. As brain cells work, they excrete what they don’t need—carbon dioxide, ammonia, and protein waste. This garbage collects in the spaces between the cells.
But during sleep, brain cells shrink in size—as much as 60 percent. This opens up the “streets” of the brain. And that’s when cerebral spinal fluid flows through the brain flushing out the toxins.
“If you don’t get enough sleep,” I wish I had known to tell Alex, “you wake up with heaps of garbage still in your brain. No wonder you feel like trash.”
Would this have been enough to motivate Alex to turn off his phone at ten?
Maybe not.
Still, the imagery from this study might be striking enough to catch the attention of a middle school kid.

This week I paid tribute. My aunt died—the aunt of a famous chocolate cake, the aunt who loved people just as they were, not waiting for them to change, and, for me, the aunt of the chifferobe. In my memoir
If I were teaching social studies or literature, I’d bring Lee Ufan to class. I saw his work first at the Columbus Museum of Art, where I lead tours. I walked into the gallery and was instantly captivated by the broad, flat brushstrokes he drags across the otherwise undisturbed chalky white canvases.
I’d show students another painting, also entitled Dialogue 2018. How, I’d ask, does this painting—with its one continuous brushstroke—show a running conversation inside the head of a character? Or . . . how does the painting show a constantly repeated dialogue within a group of similar people? How does Ufan illustrate that, at the beginning, there is often more than one inner voice? And how does he show that, in the end, an accepted common narrative eventually pours out?
Ufan liked to hang multiple paintings in one gallery—as if the paintings were having conversations with each other. Above you see an installation from the Dialogue series at the Pace Gallery in New York City. Tell me, I’d say to students, about the conversation in this room. How does it relate to the literature you’ve read or to an event in history or to the current times?
I hadn’t known, but this was the lead I needed. I discovered that Kathy O’Rourke Parker was a co-creator of Barney and Friends. And she had a husband named Philip Parker who was a math teacher and who had, besides, written more than 100 songs for the Barney television series. They lived in Texas.