Spermidine, a compound found abundantly in aged cheese, fermented soybean natto, mushrooms and wheat germ, has been shown in research to activate autophagy, the cellular self cleaning process that removes damaged proteins and organelles associated with aging and neurodegeneration.

Your ancestors ate these foods not because they understood autophagy but because their bodies told them these foods made them feel extraordinary.

Traditional aged cheeses and fermented foods are not indulgences. They are longevity medicines.