Can long term  anger and anxiety cause heart attacks and can changing anger issues make it better or is it too late?

Answer to the first part of your question is 'yes' & answer to your second part of question is 'I hope so.'

Many liberals are constantly enraged about some minor "offense."  These idiots end up with serious plaque build-up in their brains which makes them even more idiotic than they were before.

Anger and anxiety can raise blood pressure, and higher blood pressure can increase chances of having a heart attack.  It's only too late if you're dead, and you're not dead.  If you can change the way you handle anger, and anxiety you will lower your blood pressure a little, eating right/diet also helps.

It's too late damage is done