"I'm exhausted, but it's not the kind of tired that sleep fixes." A friend called me last week with that particular strain in her voice I've learned to recognize. "My body feels fine," she said. "But my brain is just... done. I can't think. I can't focus. And the harder I try to push through it, the worse it gets."

"I walked into a room and completely forgot why I was there. I'd open my laptop to do something important and just stare at it. Words I'd used my entire professional life suddenly wouldn't come to me. My doctor said it was just part of getting older, but I'm only 47."

"I've tried four different brain fog supplements. None of them worked. Am I just choosing the wrong ones, or is this whole category a waste of money?"

A patient walked into my office last month with a story I hear often. She'd seen three doctors, undergone extensive testing, and heard the same refrain each time: Everything looks normal. Yet she couldn't focus at work, forgot simple tasks, and felt like she was thinking through fog.

You wake up feeling like your brain is wrapped in cotton. Simple tasks that used to be automatic—remembering where you put your keys, following a conversation, or staying focused during a meeting—now feel like climbing a mountain.

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