WK 3 Appetite

Question 1

Obesity

Answer 1

determined by persons BMI (weight in kg divided by height in M^2)

Question 2

Fat

Answer 2

referring to the amount of white fat cells stored on a persons body

Question 3

How do we control food intake?

Answer 3

Body + Environment > Brain > Eating

Question 4

Body controls

Answer 4

biological:

• energy levels
• sensation
• digestive organs

Question 5

Environment controls

Answer 5

external forces:

• food
• time and place
• people and leisure
• portion and plate

Question 6

Energy levels:

2 modes of energy storage

Answer 6

• short-term using glucose

- long-term using fat

Question 7

Energy Levels:

change in body fat affecting appetite

Answer 7

• fat cells produce hormone (leptin)
• more fat= more leptin, decrease appetite
• less fat- less leptin, increase appetite

Question 8

Sensation:

what forms flavour

Answer 8

taste, smell, touch

Question 9

Sensation:

food flavour forms ……

Answer 9

intake

Question 10

Sensation:

sensory specific satiety

Answer 10

slows intake in a meal (more we eat of specific food, more our liking for it declines)

Question 11

Digestive organs:

How do systems send signals to the brain

Answer 11

• nerves
• hormones
• nutrients

Question 12

Food:

potent means of getting you to eat

Answer 12

show food

Question 13

Food:

cephalic phase response

Answer 13

salivation, insulin release, etc

Question 14

Time and Place:

habit bound

Answer 14

eating at same time everyday then becomes cues that trigger hunger and eating

Question 15

People and leisure:

social facilitation of eating

Answer 15

number of people we eat with affects how much we eat

Question 16

TV:

stimulate eating through

Answer 16

• adverts
• learning
• distraction

Question 17

Portion and plate:

people eat…

Answer 17

what is infront of them

Question 18

Brain controls

Answer 18

• neurochemicals

- locations

Question 19

Neurochemicals (nc):

2 nc that modulate eating

Answer 19

• serotonin (SE)

- dopamine (DA)

Question 20

Neurochemicals nc:

increased levels of SE and DA

Answer 20

suppress appetite

Question 21

Locations:

important ones

Answer 21

• hypothalamus
• cortical
• limbic system

Question 22

Whos in charge of how much we eat?

Answer 22

brain

Question 23

Breakdown:

obesity

Answer 23

main eating-related health problem

Question 24

Breakdown:

obesity causes chronic illnesses of:

Answer 24

• type 2 diabetes
• circulatory disease
• joint damage
• cancer
• etc

Question 25

Breakdown:

why does obesity occur?

Answer 25

• environment (move less, eat more)

- genes (predispose weight gain)

Question 26

Breakdown:

dieting

Answer 26

principal form of treatment for obesity

Question 27

Breakdown:

all diets work by

Answer 27

limiting energy intake (calorie deficit)

Question 28

Breakdown:

eating disorders

Answer 28

internalising disorders, causes disturbance of eating behaviours associated with distressing thoughts and emotions

Question 29

Breakdown:

% of people with an ED has a co-occuring internalising disorder

Answer 29

80%

Question 30

Breakdown:

types of ED

Answer 30

• Binge- repeated binges
• Anorexia Nervosa (AN)- dietry restriction
• Bulimia (BN)- binge eating w/ compensation
• Muscle dysmorphia-building more muscle
• Orthorexia nervosa- healthful/proper/clean

Question 31

Breakdown:

starvation- how many people cant get enough to eat

Answer 31

around 1 billion