Anorexia and number of opioid receptors (IMAGE) University of Turku Caption Number of opioid receptors in the brain (top row) and sugar intake (bottom row) in patients with anorexia nervosa. Credit Turku PET Centre Usage Restrictions Please attribute the image to the creator. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.