As the human brain evolved and grew larger, childhood grew longer (Coward 2008). Consequently, hominid bands had to evolve ways to keep their members connected for many years in order to sustain—in the African proverb—“the village it takes to raise a child” and thus pass on the band’s genes (Gibbons 2008). To accomplish this, the brain acquired powerful circuitry and neurochemistry to generate and maintain love and attachment. This is the physical foundation on which your mind has built your experiences of romance, heartache, and deep affection, and your bonds with family members.
