Not a diagnosis: a head start. These are the three drivers most worth checking first, based on what the evidence says gets missed most often.
Fog 1-2 hours after meals tracks glucose spikes and dips more than anything else.
Fragmented deep sleep leaves the brain unwashed. Snorers, take note.
The same trio behind fatigue quietly blunts cognition first.
HbA1c, ferritin, B12, TSH, vitamin D
1. Start a two-minute note in the free journal that asks back, so the pattern becomes visible.
2. Take the test list above to your GP; the Health Journal will help you say it clearly.
3. Read the evidence: 10 Foods That Look Healthy But Spike Your Blood Sugar · Brain Fog Is Not Normal. Here Are the Root Causes Nobody Checks · Brain Fog: Why You Can't Think Straight and What to Do About It.
Want it tracked and reviewed monthly by a real person? The Club, £10/month.
Education, not diagnosis, and never a replacement for your GP or pharmacist. Reference ranges and guidance vary; sudden, severe or worsening symptoms need 111, or 999 in an emergency. By Hussain Sharifi · independent, affiliate-free health intelligence.