This television advert is part of British Heart Foundation's 'Mending Broken Hearts Appeal'.
The charity is urging people to donate towards funding research that could cure heart failure.
What is heart failure?
When you have a heart attack, your heart will suffer damage that can never be repaired. This can lead to heart failure.
When you have heart failure, your heart cannot pump blood around your body as well as it used to, which means the oxygen in your blood cannot reach the parts of your body where it is needed. In severe cases, this can leave you disabled and gasping for breath.
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