Health PSYCHOLOGY. W eight management and O besity. Weight Management -- Overview. Physical activity (what does “Obesity” article say?) Dietary choices (what does “Obesity” article say?) Caloric needs Vary by age, sex, height, weight, activity level, & basal metabolic rate (BMR)
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Weight management and Obesity
BODY MASS and
Estimating percentages of fat, muscle, bone
Is there an “ideal” body comp?
Only sense directly connected to forebrain
Olfactory receptor neurons (350 ORNs)
Strong cue for eating, emotion, and memory
Taste buds (5 different types)
Salt, sour, bitter, sweet, umami (savory)
each contains several types of taste receptors (microvilli) that react with tastant molecules in food
Taste is influenced by many factors
who survived during a famine?
Most are not in a
high density foods
(sugar/fat are cheap)
Increase in size
Decrease in cost
Decrease in work-
Decrease in activities
of daily living
Genetic predisposition to store fat
our jeans no longer fit our waist,
our genes no longer fit our environment
We live in a toxic environment. It’s like trying to treat an alcoholic in a town where there’s a bar every ten feet. Bad food is cheap, heavily promoted, and engineered to taste good. Healthy food is hard to get, not promoted, and expensive.
If you came down from Mars and saw all this, what else would you predict except an obesity epidemic?
Kelly Brownell, Yale, 2004 (Nat’l Geo. Article: The heavy cost of fat)
French Fries 2.4 oz 7 oz
210 kcal 610 kcal
Soda 6.5 oz 20.0 oz
79 kcal 250 kcal
Hershey’s Bar 2 oz 7 oz
300 kcal 1000 kcal
20 Years Ago
1700 calories21 cups buttered
Pima Indians (in Mexico vs. in U.S.)
NYTimes Aug 13, 2010