I’ll be honest with you: when my son-in-law first mentioned “theta wave audio” to me last January, I nearly laughed him out of the room.

I spent 31 years in aerospace systems engineering. I’m not a man who chases wellness fads. I don’t buy supplements on infomercials, and I’ve never meditated a day in my life. So when he said there was a 7-minute audio clip you listen to in the morning that might improve mental focus and clarity — I assumed it was something for people who believe in crystals.

But here’s the thing: at 58, I’ve noticed things changing. Not dramatically. Not in a way I’d describe to a doctor. But I’ll find myself re-reading the same paragraph twice. I’ll walk into the kitchen and forget why I went. I’ll be mid-sentence in a meeting and lose the thread of what I was saying. Small things. Annoying things.

My wife noticed before I did. “You seem foggy in the mornings,” she said one day. She wasn’t wrong.

So when my son-in-law explained that there’s actual neuroscience behind theta brainwave stimulation — that MIT-affiliated researchers have studied how sound frequencies at specific hertz levels can influence how neural networks communicate — I didn’t dismiss it immediately. I Googled it. I read some papers. I found it more credible than I expected.

And then I did something out of character: I decided to test it myself.

“I told myself I’d give it 30 days, document what I noticed honestly, and if it did nothing — at least I’d have a good story about being wrong.”

The program I used is called Genius Wave. It’s a 7-minute audio file — not music exactly, but not unpleasant either. You listen with headphones, typically in the morning. The premise is that it uses a technique called brainwave entrainment to encourage your brain to produce more theta wave activity — the state associated with deep focus, creativity, and that “flow” feeling where work seems effortless.

I’m not going to tell you it’s magic. I’m going to tell you what I noticed, week by week.

Week One — Days 1–7

Honestly, not much. The audio itself is relaxing. I used it right after my first cup of coffee, before opening my laptop. I noticed I was less irritable in the mornings, but I attributed that to the fact that I was sitting quietly for 7 minutes instead of immediately diving into email. Placebo? Routine benefit? Hard to say.

Week Two — Days 8–14

Something shifted mid-week two. I was working on a consulting report — the kind of dense, multi-variable analysis I used to find easy and now find exhausting. I got about 90 minutes into it without looking at my phone, without losing focus, without the usual “I need a break” pull. I noticed it afterward. I didn’t notice it while it was happening, which is sort of the point.

Week Three — Days 15–21

The foggy mornings became less frequent. I’m not claiming they disappeared. But the 20-minute warmup period my brain used to need — where I’d be present but not quite sharp — felt shorter. My wife mentioned without prompting that I seemed “more like myself” in the mornings. I hadn’t told her what I was testing.

Week Four — Days 22–30

By the end of the month, I’d made it a non-negotiable part of my morning. Not because of dramatic transformation, but because the 7 minutes felt like they paid dividends for the next few hours. The word I kept coming back to was accessible — like my own thinking was more accessible to me than it had been in a while.

I want to be careful about what I’m claiming here. I’m one person. This is not a clinical trial. I’m 58 years old, I exercise regularly, I eat reasonably well, and I have a structured morning. Any number of variables could explain what I noticed.

What I can tell you is that I still use it. Every morning, before the laptop opens. It costs nothing to try — there’s a free explanation of how the technology works on their website — and the downside of 7 minutes of calm audio each morning is, as far as I can tell, nothing at all.

If you’re the kind of person who’s noticed your mental sharpness isn’t quite what it was — if “foggy mornings” is a phrase that resonates with you — I think it’s worth the time to at least understand the science behind it. The research on theta waves is real. Whether this particular approach works for you is something I can’t tell you.

But I’m glad I stopped laughing and tried it.

Editorial Note: This article represents the personal experience and opinion of the author. Results will vary. This is not medical advice. The author received no compensation for writing this piece. If you have concerns about cognitive health, consult a qualified healthcare professional.