Navigator for the cardiovascular-risk cluster — estimating a person’s baseline risk, the exposures and drugs that move hard CV events, and the behavioural big rocks. Nucleus of the exposure side: Sodium Intake and Blood Pressure.

Estimating baseline cardiovascular risk

Blood pressure levers

The wider psychosocial / HPA-channel exposures that reach cardiometabolic risk through cortisol — social connection, sense of purpose, allostatic load, depression — plus sun/UV live in Psychosocial and Environmental Exposures Hub; most are observational mortality markers, not proven BP levers.

Lipids, drugs, and dietary patterns for CV events

  • LDL Lowering and Cardiovascular Events — how much does lowering LDL/apoB buy per unit (CTT: RR 0.78 events + RR 0.90 mortality per mmol, no threshold), and which lipid number to target (Marston: apoB)?

  • LDL ApoB and Cumulative Exposure — the causal model beneath the lipid axis (why LDL/apoB causes disease, why the dose is cumulative, why measure apoB)

  • Statins for Primary Prevention and the Power of Zero CAC — for a primary-prevention adult, does a statin help, and does a zero coronary-calcium score change that decision?

  • Aspirin for Primary Prevention of Cardiovascular Disease — does daily aspirin prevent enough CV events to outweigh its bleeding harm? (net wash-to-harm; benefit ARR 0.41% offset by bleeding ARI 0.47%, in every risk stratum — the de-adoption anchor)

  • Eggs Dietary Cholesterol and Cardiovascular Risk — whether dietary cholesterol from eggs raises CV risk (near-null in general cohorts; the signal, where any, is in diabetics), and why the headline swings

  • Levothyroxine for Subclinical Hypothyroidism — the standing-drug de-escalation anchor: for the modal SCH adult (mildly elevated TSH), levothyroxine normalizes the defining lab but moves no patient-important outcome (QoL/symptoms SMD ~0, GRADE high) — a lever not worth starting, bounded away from TSH >10, age >80, and high symptom burden

  • Mediterranean Diet and Cardiovascular Events — whether a whole dietary pattern (not a single nutrient) reduces hard CV events, in whom and on which outcomes

  • Does Weight Loss Reduce Cardiovascular Events — whether intentional lifestyle weight loss prevents hard CV events, and what the Look AHEAD null bounds

  • Inflammation as a Modifiable Lever — inflammation as a second causal axis beside lipids: two RCTs (CANTOS canakinumab, LoDoCo2 colchicine) cut CV events with lipids unchanged, but CRP is a marker not a cause (MR), the benefit is on events not all-cause mortality, and the anti-inflammatory diet is an observational proxy for MedDiet, not a shown independent lever

Behavioural big rocks

  • Smoking and Mortality — the size of smoking’s mortality effect and how much cessation recovers as a function of age at quitting
  • Electronic Cigarettes and Cardiovascular Risk — a distinct, much thinner exposure: acute surrogate harm (HR/BP rise) shown, hard CV endpoints insufficient; valence flips by stratum (smoker switching = harm reduction vs continued smoking; never-smoker starting = new harm)
  • Alcohol and Mortality and Vascular Disease — whether moderate intake is protective, harmful, or neutral, and whether the J-curve survives scrutiny; now also the drinking-PATTERN axis (binge at fixed volume, Roerecke), the red-wine/resveratrol null (Semba), and the population “no safe level” burden (GBD, Rumgay)

Neurodegeneration (dementia · Parkinson’s)

Most modifiable dementia levers ARE the cardiometabolic big rocks (hypertension, diabetes, obesity, LDL, smoking, inactivity, alcohol) — pulling them buys cognition as a second patient-important outcome. Parkinson’s, by contrast, has few credible levers and mostly critically-low evidence. Home of the dementia and parkinsons clusters until they warrant their own hub.

  • Dementia Prevention and Modifiable Risk Factors — the 14-factor life-course framework and the ~45% population-attributable-fraction headline, with the modelled-attribution caveats (nucleus)
  • Multidomain Lifestyle Intervention and Cognitive Decline — the FINGER RCT: does intervening on the levers as a bundle actually move cognition? Yes, but small (d=0.13), on a surrogate, non-decomposable
  • Hearing Loss and Dementia — a dementia-specific, correctable lever: does treating hearing loss with hearing aids lower dementia risk, and for whom is the effect largest?
  • Parkinsons Disease Modifiable Risk Factors — Chen 2021 umbrella review (46 SRs, 39 critically-low AMSTAR-2); the parkinsons cluster nucleus. The thin-field finding: physical activity is the one credible protective lever (already a big rock), most other signals are reverse-causation-suspect (the long prodrome) or confounded-by-indication. Smoking’s inverse-PD association is an artifact, never a lever