What's behind your brain fog?

1. How often does it show up? Rarely A few days a month Most weeks Daily

Why we ask: Frequency separates a bad week from a persistent pattern that deserves proper investigation.

2. Does it get noticeably worse after eating? No Sometimes Consistently

Why we ask: A tight post-meal pattern points somewhere specific and is one of the more actionable signals here.

3. How was your sleep in the week before a foggy stretch? Good Patchy Poor

Why we ask: Sleep debt is the most common and most reversible explanation, and worth ruling out first.

4. On a foggy day, have you moved and hydrated? Both One of them Neither

Why we ask: Unglamorous, but both reliably shift subjective clarity — and both are easy to check.

5. Any gut symptoms alongside it? None Occasional Frequent

Why we ask: Fog that travels with digestive symptoms is the version most likely to be gut-related.

6. Recent antibiotics, illness, or a big diet change? No Months ago Recently

Why we ask: A clear before-and-after gives you a starting point that guesswork can't.