Why aren't heart attacks and strokes 100% preventable?

Theoretically they are.But in reality we fail because we cannot predict these events.For the same reason that we can't predict the weather reliably. I'll get to that comparison in a moment.To prevent a heart attack we would need to have (a) an early warning system that alerts us to an imminent attack, and (b) the means to

Why is there an increased risk of cardiovascular disease events when stress-related diagnoses are made, such as 'post-traumatic stress disorder, acute stress reaction, adjustment disorder, and other stress reactions?'

The natural response to stress is for heart rate to go up, blood pressure to rise, and the arteries to constrict. If the stress is due to exercise, that's a good kind of stress. If you are temporarily in danger, it's also a good