Related Experiment Video
Updated: Aug 14, 2026

A Mouse Model of Subchronic and Mild Social Defeat Stress for Understanding Stress-induced Behavioral and Physiological Deficits
Published on: November 24, 2015
The link between fluid intake and weight gain in psychosis
W V Vieweg1, L S Godleski, P Graham
1Western State Hospital, Staunton, VA 24401.
Abstract:
Diurnal weight gain was found to be abnormal among 44 of 77 institutionalized chronically psychotic patients. All patients were weighed and urine samples obtained weekly for 3 weeks at 7 A.M. and 4 P.M. Diurnal weight gain was normalized as a percentage by subtracting the 7 A.M. weight from the 4 P.M. weight, multiplying the difference by 100, and then dividing the result by the 7 A.M. weight. Normalized diurnal weight gain (NDWG) was 2.504 +/- 1.266% for the 44 study patients with abnormal findings, .631 +/- .405% for the 16 acutely psychotic controls, and .511 +/- .351% for 29 normals. Urine excretion was related (r = .476, p = .001) to NDWG in the subgroup of study patients with abnormal NDWG, consistent with the observation that their fluid intake exceeded fluid excretion in the afternoon.
Related Concept Videos
Psychosis and Antipsychotic Drugs: Overview
Disorder of Water Balance
Dehydration
Dehydration occurs when the body loses fluids (particularly water).
Causes:
The major causes of dehydration include excessive sweating, fever, vomiting, diarrhea, and diuresis.
Signs and Symptoms:
Symptoms primarily include intense...
Psychological and Sociocultural Causes of Schizophrenia
Diabetes Insipidus I: Introduction
Diabetes Insipidus II: Pathophysiology
Ascites

