Data sources

We compile information from reputable public health and first‑aid organisations. Key sources include:

• NHS (UK) – Symptoms, prevention and emergency guidance for heart attacks.
• Life Saving Training / St John Ambulance (UK) – First aid advice on recognising heart attacks and assisting with aspirin.
• Cork University Hospital (Ireland) – Emergency department guidance on responding to chest pain and heart attacks.
• American Red Cross – General first aid steps and aspirin dosing recommendations for the United States.
• American Heart Association – Heart attack signs and prevention tips.
• Heart & Stroke Foundation of Canada – Canadian information on heart attacks.
• European Society of Cardiology – Educational resources on acute coronary syndromes.
• Scottish Intercollegiate Guidelines Network (SIGN) – Evidence‑based guidelines for acute coronary syndrome management.

We aim to keep our content aligned with current public guidance. Please consult the source links on our Research & News page for the most up‑to‑date information.