Which brain region is associated with signaling hunger signals?

• A. Estrogen
• B. Testosterone
• C. Lateral hypothalamus
• D. Ventromedial hypothalamus

Answer: (C)

When we think about how the brain signals hunger, the lateral hypothalamus acts as the key hunger center. Activating this area tends to drive feeding behavior and signals the need to eat; damage to it can reduce hunger and intake. This contrasts with the ventromedial hypothalamus, which serves as a satiety center—its activity promotes fullness and decreases eating, and its disruption can lead to overeating. Estrogen and testosterone are hormones, not brain regions, so they don’t directly signal hunger from a specific brain area, even though they can modulate appetite indirectly. So, the region most directly tied to hunger signaling is the lateral hypothalamus.