Are heart attacks and strokes sometimes caused by artificial Sweeteners?

The problem with artificial sweeteners

I listened to the scientist talk about research done regarding artificial sweeteners above:

What I got out of this was that human bodies expect to have certain things happen in that body when sweeteners arrive. In other words they expect actually sugar or fructose not fake chemical substitutes.

So, when you use artificial sweeteners is throws off your body's reactions that it should have to sweets when they come into your body. So, because it doesn't react right it can cause at some point a heart attack or stroke because the body doesn't believe it is real sugar or fructose (because of all the artificial chemical sweeteners) so it doesn't do what it needs to do to protect you from heart attacks and strokes.

And this heart attack and stroke effect can happen with as little as one diet drink with artificial sweeteners  a day.  This appears to be enough to confuse the body into not protecting you when actual sugar or fructose arrives in the body and in the end this non-reaction to actual sugar is what can be harmful or even fatal at some point.