While obesity is an ever increasing problem in today's world, numerous facts suggest that its side-effects continue to be underestimated. Recent studies link obesity with pineal gland hormone and melatonin. The aim of this study was to determine differences in morphological attributes of the pineal gland in normal and overweight people in terms of pineal width and volume. A lower pineal width and volume in overweight individuals stated in the study may suggest a different excretory activity of the pineal gland.