Your heart needs a constant supply of oxygen-containing blood to keep it healthy. A heart attack happens when a blood clot in an artery interrupts that blood supply.
Chest pain is the most common warning sign of a heart attack. But there are other signs and symptoms and these can vary from one person to another. Too often people ignore symptoms because they think of the classic 'Hollywood' heart attack where someone collapses to the ground and is unconscious.
You can help us save lives by learning how to recognise the signs of a heart attack and calling an ambulance immediately when you recognise the signs in you or other people.