Brain Signaling for Food By George Han, Sean Feng.
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Transcript of Brain Signaling for Food By George Han, Sean Feng.
Essential part of life, nutrition, vitamins
Brain signals the quantity intake of food
Affected by smell, sight, and memory
Brain turned on by taste and emotion
INTRO
Hypothalamus signals nerves in the stomach
Determines specific appetite
Amino acids (protein), fatty acids (fat), glucose (carbohydrates)
Insulin hormone sends brain message
Low glycogen level/Low blood sugar levelStimulate activity in hypothalamus
Increasing sweet/starchy food desire
Ghrelin/Leptin circulationNPY
Different types of foodSweet/Starchy
High calories
Fat food
Leptin levels increase= cause of fullnessInhibit firing of NPY
Galanin fat connectionStores up fat
Evening
Enough calories to last through night
Food digested feeds body cells
Chlecystokinin (CCK)
Causing fullness, less appetiteBulimia
Over eating disorder
Binge purge syndrome
CCK mechanism doesn’t function
AnorexicsSuffering from extreme thin
CCK mechanism is oversized
To sum up…Human body has a complex system that signals our body for hunger.
Brain plays a big part of our survival instinct.
Bulimia and anorexia are caused by CCK malfunction.