In layman's terms, CQ10 benefits the cell components known as mitochondria, which produce ATP, the energy supply for the cells. The more active the cell, (like a muscle cell when the muscle is in use) the more the mitochondria work.Cells contain these organelles in a concentration directly associate with how much energy the cell puts out. So, which muscles in the body have the most mitts'? The heart muscles of course, as long as our heart is beating.
When the heart does not beat as strongly due to fewer working mitt's in its' muscle, we get cardiac problems.
Statins work, but a side effect of them working is that in many cases the mito's in the heart muscle cells are impaired in their production of ATP. So, you can guess the effect on the heart.
That's why supplementation of CQ10 (also known as ubiquinol, the best , or ubiquinone, a cheaper form,) is a good idea when starting a statin regimen.
One of my former students is a cardiologist, a very popular one in the San Diego area. He has most if not all of his patients taking CQ10.
Some people also find other benefits from taking statins, and some people also feel multiple benefits from taking CQ10. But all statin- takers should supplement with CQ10.
I hope that makes sense in everyday-speak!