The number of people dying from a heart attack has halved in the past 30 years, with more people than ever before surviving an attack - but heart disease is still a life-changing condition.
Now there are hopes that a new research programme might identify ways in which the body is able to do more to help repair itself.
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Andrew walks the hills of Flintshire & Hannah visits a new saltmarsh on the Gower Peninsula, and a link to our Gallery of Wales.
This evening cloud will continue to spread eastwards and winds will strengthen. Patchy rain in many places overnight.
Bafetimbi Gomis' fortune in front of goal might just have changed for the better, according to Swansea manager Garry Monk.