AP BIOLOGY

Detailed explanation-1: -Stimulus hunger (sometimes referred to as sensation hunger) is the need for sensory input from others and the need of the stimulation of being with others.

Detailed explanation-2: -Internal stimulus For example one of the internal stimuli is hunger which is the sign of low energy in the body. It stimulates us to eat something to regain the needed energy.

Detailed explanation-3: -Ghrelin levels are primarily regulated by food intake. Levels of ghrelin in the blood rise just before eating and when fasting, with the timing of these rises being affected by our normal meal routine. Hence, ghrelin is thought to play a role in mealtime ‘hunger pangs’ and the need to begin meals.

Detailed explanation-4: -Dr. Hillman explains, “If you’re actually hungry, you’ll experience true hunger cues, such as stomach growling, low energy, shakiness, headaches and problems focusing.” It’s just as important to recognize when you listen to those signals too, so you know what they feel like for the future.