Küllastustunne

Küllastustunne, commonly translated as "feeling of fullness" or "satiety," is a complex physiological and psychological sensation that signals the body has consumed enough food. It plays a crucial role in regulating food intake and preventing overeating. This feeling is not a single event but rather a gradual process influenced by various signals from the digestive system and the brain.

Several factors contribute to the onset and intensity of küllastustunne. Mechanical stretch receptors in the stomach lining detect the volume of food consumed, sending signals to the brain that contribute to a sense of fullness. Hormonal signals also play a significant role. For instance, hormones like cholecystokinin (CCK) and peptide YY (PYY) are released in response to the presence of food in the intestines, signaling satiety to the brain. Leptin, a hormone produced by fat cells, also influences long-term appetite regulation and satiety.

Furthermore, sensory aspects of eating, such as the taste, smell, and texture of food, can influence the perception of fullness. The brain integrates these sensory inputs with internal physiological signals to determine when eating should cease. Psychological factors, including learned eating habits, cultural norms, and emotional states, can also modulate the experience of küllastustunne, sometimes leading to eating beyond the point of physical satiety. Understanding küllastustunne is important for maintaining a healthy weight and promoting overall well-being.