How does vasopressin affect emotions?

Vasopressin has significant effects on emotions, particularly in the context of social bonds and feelings of love. According to Andrew Huberman, vasopressin directly influences the brain to create feelings of giddy love and has been used as an aphrodisiac. It also has notable effects on memory enhancement. Moreover, vasopressin plays a role in monogamous versus non-monogamous behavior, with variations in vasopressin or its receptors influencing such behaviors in both humans and animals. In prairie voles, for instance, different levels of vasopressin or its receptors determine whether they exhibit monogamous or non-monogamous behavior 1.

Thus, vasopressin significantly impacts emotions related to love and bonding, and it modulates social behaviors linked to these feelings.