HSCI 216 Lecture Notes - Energy Flux, Endometrium, Cortisol
27 Jul 2012
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If you keep getting stressed you will stop your immune system from working probably. Allocation of energy: understand this graph! Energetics: energy flux: energy turnover analogy of bank account, deposit a dollar everyday and take out a dollar everyday, or deposit 100$ everyday and take out everyday. Therefore seasons are a good predictor of energy availability and expenditure. Having a baby in the spring so during summer you can eat and relax. If this is tied to seasons, peak energy expenditure tied with (?: experiment in poland: Women work hard during the summer for harvesting, and have winters off. Therefore energy expenditure was 1/3 higher during summer. During summer progesterone levels were low than in winter indicating ovarian suppression. Progesterone is produced from the luteal follicle hormone that promotes of growth and thickening of the endometrium (inner lining of uterus where baby will grow, and important for vacuolization)
