This is anecdotal, but I was having some 'moderate' blockage in one of my carotid arteries. Cardio doc had been trying to get me on statins for years and nothing worked, that is I can't tolerate it. GP told me to try taking CO-Q10 with the smallest statin that was best for me. Well, that worked, actually I think that's when the dizziness went away, and the brain fog too, I just felt better generally. Last time I had the sonogram, my blockage was 'normal' for my age. But I really doubt the statin cleared up my blockage. You have to try lots of things, everyone is different. What bugs me is some days I feel like crap and then get to thinking I'll be like this all the time, but it does seem to clear.
Sun's over the yardarm, I'm going up for some Jamesons.