Medical reference that tells you how much to trust it
Most health writing online has one register and one confidence level. This site has three registers and four confidence levels, because the answer to "should I do this?" is usually "that depends on how sure we are, and on who you are".
Every claim here carries an evidence grade. Some of what follows rests on decades of randomised trials and settled genetics. Some rests on a plausible mechanism and a handful of small studies. Both are worth knowing about; treating them the same is what makes health advice useless. Where experts genuinely disagree, this site says so rather than picking a side and sounding certain.
Topics
Heart & cholesterol
Lipid panels, apoB and Lp(a), plaque imaging, and which markers actually predict risk.
Brain health
Cognitive decline is not simply a matter of time passing — around 45% of dementia is associated with things that can be changed. What those are, in order of size, and what the supplement claims are actually worth.
Eating for the heart
The plate, portions, a 14-day gluten-free plan, gluten-free routes and easy swaps.
Food & product safety
Which product to actually buy: 256 UK brands ranked against ten criteria, aisle-by-aisle picks, gluten-free certification, and where plastic gets into food.
Fibromyalgia
A disorder of how the nervous system processes pain — and since July 2026, one with robust genetic evidence behind that rather than an inference from ruling other things out. What changed, what did not, and what actually helps.
Life health checks
What is worth checking in each decade, what the NHS already owes you and most people do not claim, and the tests that sound thorough but do more harm than good. A per-decade checklist with the reasoning attached.
Eyes & sight
Glaucoma takes the vision you will not notice losing and none of it comes back; macular degeneration takes the middle and one form of it moves in weeks. Who gets a free sight test, what changed in 2022, and what the supplements are worth.
Longevity & exposures
Sixteen graded household and environmental exposures, from non-stick pans to night noise.
Emergencies & first aid
Every chapter covers adults and children together — vital signs, resuscitation, choking, bleeding, collapse, sepsis, injury and anaphylaxis. What people most often get wrong.
Pulmonary embolism
A clot in the lung: recognising it, the tests and treatment the hospital should deliver, the 2026 catheter trials, and the follow-up that stops the next one.
Stroke
Every treatment window with its numbers, what the hospital should do in the first 72 hours, finding the cause, and preventing the next one. UK and US guidance side by side.
Blood clots & DVT
Deep vein thrombosis and the clots in unusual places: the scan pathway with its time limits, treatment at home, the leg afterwards, and how clots are prevented in hospital and on the road.
Heart attack, angina & rhythm
Every kind of heart attack and the conditions next to it: recognising them, the clock, what the hospital should do, the rhythm problems and heart block, and the years after.
Vaping & second-hand vapour
What is actually in the aerosol, who it harms and how much, what a bystander in the room really breathes, and what changed in UK law in 2025.
Calculators and tools
What each one is for →For clinicians
- Phase 1 Baseline panel One blood draw
- Phase 2 Imaging triage If Phase 1 abnormal
- Phase 3 Definitive imaging Is plaque present?
- Phase 4 Specialist workup Rarely needed
Each phase is triggered by what the last one revealed, so most patients never reach Phase 3. Open the pathway
How we grade evidence
The full grading page →- Strong Consistent trials or Mendelian randomisation.
- Moderate Observational agreement, plausible mechanism.
- Emerging Early data. Interesting, not actionable.
- Contested Real expert disagreement. We say so.