I am early 40s, both parents have heart issues including major surgeries, valve replacement/ bypass. Both in their early 70s. They both smoke like chimneys, Dad drinks far too much but does walk into the village to the pub, does all the gardening and DIY etc so reasonably fit otherwise. Mum rarely leaves the house, or couch for that matter, but is stick thin despite this. Diets are atrocious for them both. Chips with everything, all processed meat, 2 sugars in tea very few vegetables etc. Nothing will change them at this point, I've tried it all.
We are an active family, love outdoors, eat very healthy, although I probably drink too much, never touched a cigarette. I am a bit overweight.
What can I do to negate the fairly inevitable heart issues? What do I need to change and prioritise and focus on? And good habits to pass onto my children?