Health Markers

People tend to accept their daily energy level and their sense of physical decline beginning in middle age as normal and unrelated to diet. "Normal" in this sense means average, it means what is happening to the vast majority, it means acceptance of disability and death in your seventies or eighties, rather than freedom from disease and the enjoyment of an active, vigorous, youthful life to well beyond the century mark. Many people simply have not experienced the increased well-being and remarkable physical transformation that a truly wholesome diet guarantees.

Brain Function

Probably the greatest fear about growing old is the possibility of serious mental decline: forgetting things, being
confused in public, and much worse. The extent to which this really happens, and especially the time of onset of the decline, is a subject of debate. Whatever the details may be, however, and judging again by animal data, the decline can be slowed, even largely prevented, by the Anti-Aging Plan with caloric limitation.

Biosphere Experience

The actual diet eaten by the Biospherians during the two years sealed inside was high in quality (we can refer to
this as nutrient rich, which means each calorie is packed with nutrition) and low in calories, but quite limited in
variety. It's not very satisfying to have sweet potatoes as part of every mealbreakfast, lunch, and dinnerfor two to
three straight months, just because they are growing well during that season. (We became very ingenious at
preparing sweet potatoes in different waysas custards mixed with bananas, as roasted slices, baked whole, and so
on). Another of our seasons might be extra heavy on beetseven harder to prepare in different ways.