I am really sorry about your husband diagnosis.

Statin lowers cholesterol that our brains need to function. Cholesterol helps neurotransmitter to connect brain cells. (please research on this. There are good amount of materials on this on line.)
Our neurologist also was concerned about the level of my husband's cholesterol (130). Without statin, my husband cholesterol stays under 200.

Our integrative physician also suggested that for my husband LBD is more urgent issue than high cholesterol is.

Please do research and ask many questions (alternative treatments, supplements, exercises, therapies and clinical trials and etc.) to your doctors. Some may help and some may not. And we don't know which is which. Most importantly, it's good for your and your husband's body and mind. That's what we have been experiencing.

With prayers,

p.s. Sugar and high carb (refined) are your enemy #1.