8 crucial symptoms that could help predict a heart attack a month before.

A heart attack is a serious medical emergency that needs immediate medical attention – but there are symptoms and warning signs you can look out for to help prevent one.

If you suffer a heart attack, medically known as a myocardial infarction, it can be fatal.

It happens when the supply of blood to the heart is suddenly blocked, usually by a blood clot, and the lack of blood to the heart may seriously damage the heart muscle, which is life-threatening.

Below are eight warning signs to look out for that may appear a month before a heart attack.

If you are worried about having any of the following symptoms, speak to your GP or phone the NHS on 111 to speak to healthcare professionals about an urgent medical concern.

You will also find a video explaining what to do if someone is having a heart attack, at the end of the article.