As a practicing neurologist, I can tell you first hand that working with Parkinson's patients offers clinical challenges. But from an emotional perspective, this disease can border on overwhelming.
Two forms of fat that are vitally important for brain health are cholesterol and saturated fat.
The science supporting the relationship between carbohydrates and dementia is quite exciting, as it paves the way for lifestyle changes that can profoundly affect a person's chances of remaining intact, at least from a brain perspective.
Increase your consumption of healthful fats like extra virgin olive oil, avocado, grass-fed beef, wild fish, coconut oil, nuts and seeds. At the same time, keep in mind that modified fats like hydrogenated or trans fats are the worst choices for brain health.
Bad things happen. And the human brain is especially adept at making sure that we keep track of these events. This is an adaptive mechanism important for survival.