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.
The British Heart Foundation says that although heart attack deaths in Wales are falling, there is little evidence that heart failure deaths are also decreasing.
The majority of coronary heart disease deaths are a result of a heart attack.
We're undergoing an unprecedented period of change when it comes to heart health in Wales.
It is pleasing that decades of British Heart Foundation funded research has contributed to the dramatic fall in heart attack deaths over recent years. But this means that more and more people are surviving heart attacks with damaged hearts and there is now an urgent need to find ways of reversing that damage.
Our scientists are making great strides in this fight against heart failure, but success will require much more money and much more research to ensure that this momentum is not lost.
British Heart Foundation says it hopes its new campaign, Fight for Every Heartbeat, will gain the support of people in Wales and help save lives.
Heart disease devastates too many lives. Every day in the clinic I hate seeing its impact on children, parents and grandparents. I'm searching for a breakthrough to put an end to the suffering. But medical research costs money and the BHF urgently needs support to rid the UK of heart disease and the misery it brings.
– Professor Mark Kearney, BHF researcher and cardiologist
We're fighting for every heartbeat - regardless of a person's postcode. Our new campaign will bring this urgent fight to the public's attention. With the support of people living in Wales we can, and will, beat heart disease.