The 5 Things That Really Spook People Over 50

... beta-amyloid, a protein that contributes to Alzheimer's. Instead we can consume brain-protecting foods like Vitamin E-rich nuts (about 1.5 ounces or 8 milligrams a day will do), vegetables, beans and a small amount of fruits and whole grains. ...

http://www.forbes.com/sites/nextavenue/2013/10/31/the-5-things-that-really-spook-people-over-50/