NFSC 100 Lecture Notes - Lecture 2: Adipose Tissue, Calorimeter, Skimmed Milk
11 Dec 2016
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Document Summary
Want to: psycho-social response, appetite, stress, habit, special occasions, social norms. Hypothalamus: regulate hunger by communicating between brain and body, regulate the release and uptake of chemicals, satiety center in brain, processes nerve signals from throughout the body. Hormones/brain chemicals: ghrelin from stomach, a major physiological hunger signal, leptin from adipose (fat) tissue, suppresses the desire to eat, neuropeptide y from hypothalamus. Send message to the brain when the body needs. Hypothalamic appetite regulation by ghrelin and leptin. Composition of meals: dietary fiber and water more filling, high protein vs. high carbohydrate. Food as a coping device, stress reliever. Appetite: affected by external factors (smelling, seeing, learning preference (coffee, alcohol) Food desert: area with limited access to affordable and nutritious food, particularly an area composed of predominantly low income neighborhoods. Food insecurity: inability of an individual or household to afford and to access a healthy and adequate diet. Excessive body weight, abdominal fat: calorie in > calorie out.
