A metabolic approach to brain health -- A full spectrum of gray -- Why the brain is vulnerable: the Goldilocks principles -- Are you at risk? -- The 3-part brain trust program -- The care and feeding of the brain: what (and what not) to eat -- Supplemental nutrition for the brain: what (and what not) to take -- Exercise for the brain: what (and what not) to do -- Novel applications of the brain trust program -- Good brains gone bad: menopause, migraine, dimming of the senses, and Alzheimer's disease.