Glossary
Vasopressin
What is vasopressin?
Vasopressin, also called antidiuretic hormone (ADH), is a peptide hormone made in the hypothalamus and released into the bloodstream by the posterior pituitary. It helps regulate water balance and blood pressure. Vasopressin signaling is also studied in social behavior and cognition.
Functions
Water balance and blood pressure
Vasopressin promotes water reabsorption in the kidneys. It can also constrict blood vessels. These functions help explain its antidiuretic and pressure-related roles.
Social behavior
Animal research links vasopressin signaling to processes such as pair-bonding, aggression, and parental behavior. Effects depend on species, sex, circuit, and context.
Learning and memory
Experimental work includes social recognition and memory. It does not establish a general memory-enhancing effect in humans.
Associated conditions
Diabetes insipidus can involve insufficient vasopressin or kidneys that do not respond appropriately. Central vasopressin deficiency is commonly treated with desmopressin, an analogue. Treatment differs when the cause is kidney resistance or excessive drinking.
Social, emotional, and memory difficulties are areas of research into vasopressin signaling. A research association alone does not establish a treatment benefit.
Why it matters
Vasopressin has well-defined physiological roles and more context-dependent behavioral effects. Keep evidence about water regulation separate from claims about social behavior or memory treatment.