Heart attacks are a medical emergency that require immediate treatment, according to the NHS.
The condition, which is also known as a myocardial infarction, is caused by the heart’s blood supply becoming blocked.
Eating a healthy, balanced diet is one of the best ways to lower your risk of a deadly heart attack.
Add these four foods to your daily routine to slash your risk of the condition.
Eating three portions of berries every week could lower the chances of heart attacks by a third, scientists have claimed.
Blueberries, as well as strawberries and other types of berries, contain powerful antioxidants that could lower blood pressure, said medical website Health.
The berries are also rich in anthocyanins, which help to dilate blood vessels.
Dilating blood vessels helps to lower blood pressure, and reduces stress on the heart and other vital organs.
Dark chocolate could benefit the heart, while reducing inflammation and lowering blood pressure.
The benefits only apply to chocolate made up of at least 60 per cent cocoa, warned the medical website.
“Dark chocolate contains flavonoids called polyphenols, which may help blood pressure, clotting, and inflammation.
“Unfortunately, milk chocolate and most candy bars don't make the grade when it comes to protecting your heart.”
Tomatoes are rich in the heart-healthy mineral potassium.
“Plus, they're a good source of the antioxidant lycopene,” it said.
“Lycopene is a carotenoid that may help get rid of "bad" cholesterol, keep blood vessels open, and lower heart attack risk.
“And because they're low in calories and low in sugar, they don't detract from an already-healthy diet.”
The superfood avocado could lower the risk of heart disease, by helping to get rid of cholesterol.
“These soft, tasty fruits have a well-established reputation for providing the body and heart with healthy fats,” said Health.
“Like olive oil, they're rich in the monounsaturated fats that may lower heart disease risk factors, such as cholesterol.
They're also high in antioxidants and in potassium. They can be eaten on their own or blended into guacamole, perhaps with some heart-promoting tomatoes.”