If hunger feels muted or strangely absent, the cause may not be willpower or routine. Modern life has quietly altered how the body senses hunger. Artificial light now interferes with internal signals that once told humans exactly when to eat. Not feeling hungry is often mistaken for metabolic efficiency. In reality, disrupted hunger signals can lead to erratic eating, blood sugar instability, and fatigue. The body thrives on predictable cues, not constant stimulation.