PSY 3391 Lecture Notes - Lecture 19: Sex Steroid, Autoimmune Disease, Anorectic

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Energy balance = energy intake + energy expenditure. Energy balance: energy intake - energy expenditure = 0. Energy intake > energy expenditure = energy storeage. Energy storage isn"t necessarily bad, we need it to help us with coping w/ harsh environments, courtship, mating, gestation, lactation, nest defence, reproductive behaviours, etc. Energy intake and energy expenditure are never perfectly balanced. Why? energy intake is episodic and the need for energy is constant. Excess energy is stored in the form of adipose tissue. Aka fat stores that we can access later. Orexigenic: all the hormones and peptides that will increase food/energy intake. Type 1: rapid onset in children and young adults. An autoimmune disorder in which the -cells of the pancreas are destroyed by the immune system and an insulin de ciency results. Tissues develop an insensitivity to insulin, leading to increased insulin secretion. Gonadal steroid hormones, food intake and body mass.

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