I have had a little experience with these conditions. There are alot of theories out there on what causes these conditions, such as: aluminum deposits, poor circulation, poor nutrition, dehydration, etc. Depending on the age and strength of the person involved, I would consider some type of cleanse - maybe even a juice or water fast. Then I would make sure 50% - 75% of my diet was 'live'. I would then look to some of the specific herbs that have been known as 'brain food' such as: skullcap, gotu kola, Blessed thistle, gensing, cayenne, etc. According to the 'law of signatures', walnuts are extremely good for feeding the brain. The idea behind this theory is: they look like minature brains, so they are good for the brain.