Stroke is brain injury
A stroke happens when part of the brain is injured by loss of blood flow or bleeding. This atlas focuses on the blood-flow pathway.
Risk Atlas · Stroke
When brain blood flow is threatened
This risk atlas picks up where Clot and Cascade leave off. It shows one possible stroke pathway: a clot or blockage reducing blood flow to part of the brain. Use the slider to move from brain-supply context to flow interruption, oxygen shortfall, warning signs, and emergency evaluation.
Interactive explainer
Slide from blocked flow to emergency action
Stroke is a medical emergency. This visual explains the pathway without asking you to self-diagnose symptoms.
Stroke pathway view reveals embolus path cues, brain-territory connections, and warning-sign context.
Brain supply context
Key information
Stroke: what to understand
Clots can travel
A clot can form in an artery or travel from elsewhere. Where it blocks blood flow determines which brain functions are affected.
Fast recognition matters
Face drooping, arm weakness, speech difficulty, sudden vision loss, severe dizziness, or sudden severe headache can be warning signs. Stroke symptoms need urgent medical help.
Stroke risk has many sources
Blood pressure, atrial fibrillation, diabetes, smoking, kidney disease, plaque, Lp(a), and age can all contribute. The prevention plan depends on the source of risk.
Different stroke types differ
Ischaemic stroke and bleeding stroke are not treated the same way. That is why urgent assessment and imaging matter.
Prevention can be targeted
Blood pressure control, rhythm management, lipid lowering, diabetes care, smoking cessation, and clot-prevention treatment can all matter. The right mix is individual and should be guided by a health professional.
Symptoms that improve are still emergencies
Stroke symptoms can improve and still signal danger. A transient episode may still require urgent assessment.
Stroke is not always painful
Absence of pain does not make symptoms safe. Sudden neurological change is the warning sign.
This module cannot identify your stroke type
The visual is educational and cannot diagnose clot, bleeding, or transient ischaemic attack. Do not self-interpret possible stroke symptoms.
Heart risk products
Clarify risks. Navigate dangers. Prevent events.
Stroke is where hidden and incomplete risk can become brain injury, disability, or sudden emergency. If you want help understanding what your current checks do and do not show, start with Clarify. If you already have signals such as Lp(a), ApoB, blood pressure concerns, rhythm concerns, metabolic risk, smoking exposure, inflammatory markers, calcium-score findings, symptoms, medicines, previous TIA or stroke, or family history and want to understand how they may interact, Navigate may be right for you. If you want to reduce your — or a loved one’s — risk of heart attack, stroke, or avoidable cardiovascular damage, Prevent may be right for you.