Week 6 Flashcards
Commonalities and cultural differences in…
Body-image - what is perceived as attractive
Biology - weight, length, age
Life-style & health behavior
Health & Medicine
Views on health and illness
Views and use of health care
Our bodies, our health is influenced by culture
Body-image
Body-image is influenced by culture
Discussed:
1. Universally attractive features
2. Cultural differences in attractiveness
3. Propinquity effect & Similarity-attraction effect
Universally attractive features
Variation in
Vb. amount of rings on the neck, disks in their lips
But also clothing across cultures
Universally
Preferences for visual appearances have evolutionary roots
Commonalities across cultures in what is perceived as attractive:
1. Clear complexion
2. Bilateral symmetry
3. Average features
Key factor: Healthy appearance
People are attracted to healthy mates.
Clear complexion
Skin signals health more directly than any other visible aspect
The cosmetics industry provides people with ways to make their
complexion look clearer.
=> Skin conditions correlated with stigmmatization (aversive research)
Bilateral symmetry
= marker of health
- When an organism develops under ideal conditions its right and
left sides will be symmetrical.
- Genetic mutations, pathogens, or stressors in the womb can lead
to asymmetrical development.
- On average, asymmetrical faces are viewed as less attractive
Average features
More attractive than faces that deviate from average.
1. Average features are less likely to contain genetic
abnormalities and are more symmetrical.
2. We can more easily process any kind of stimulus that is closer
to a prototype than one that is further from a prototype.
& Easy processing is associated with a pleasant feeling that gets
interpreted as attractive.
Cultural differences (body)
“average is attractive” does not apply to aspects beyond facial features.
- This is seen with people’s weight, height, muscles, breasts, and hips.
- For such aspects, it’s often bodies that depart from average that are seen as more attractive.
- The kinds of body weights that are perceived to be most attractive vary considerably across cultures
Cultural diffrences - Body Weight (Western Africa)
Heavier women were universally found to be more attractive.
Western Africa, the term “fat” is often viewed as
complimentary
- ideal woman is overweight
= sign of wealth and fertility, strength and beauty
- slim people are seen as weak or ill
- malnutrition and infection are major causes of death
Undeveloped countries: Thinner tend to be poorer
Cultural diffrences - Body Weight (Western)
women who are unusually thin fit the ideal body weight.
- Rich countries: Thinner tend to be richer
- These ideals for thinner women have been more prevalent during
the past few decades, while actual average body weights have
increased
Cultural diffrences - Body Weight (Non-western)
People in non-Western cultures and non-Western immigrant groups
adopt deviant Western body images: rise in anorexia and bulimia
E.g. South Africa rising incidence of eating disorders: Zulu
schoolgirls use laxatives and diet pills to ‘look less like their mums
and more like western girls’
Body image and media
Media often portray unattainable ideals.Major influence on feelings of inferiority, views on self as being abnormal, not beautiful or even ugly.
Leading to
use of cosmetics
braces
tanning (or whitening) -> increased risks of (skin) cancer
plastic surgery - > risk of cutting in a healthy body (e.g., risks of
anesthesia, infections)
Propinquity effect
- People are more likely to become friends with people with whom they frequently interact
- Based on mere-exposure effect: the more we are exposed to a stimulus, the more we are attracted to it (conditioning & easy to process)
- Culturally universal mechanism
Similarity-attraction effect
People are attracted to others if they share many similarities
(e.g., in attitudes, economic background, personality,
religion, activities)
- Particularly strong in cultures with high relational mobility
(individualist > collectivist cultures)
Human biology
- Innate biological differences
= result of selection pressures over generations - Acquired biological differences
= cultural effects on one’s biology in 1 life-time,
independent of genes
Innate biological variablility
Different environments have different selection pressures,
leading different populations to evolve different traits.
=> Most salient example of genetic variability of humans across
different populations = skin color.
Strongly correlates with ultraviolet radiation (UVR)
that reaches different parts of the globe.
=> Light skin allows sufficient UVR to synthesize Vitamin D.
=> Dark skin prevents over-absorption of UVR, and prevents
breakdown of folic acid (Risks of anemia, birth defects, or skin
cancer).
Exception: Inuit (Greenland)
diet rich in fish and sea mammal blubber, high in vitamin D
Skin color
=> Light skin allows sufficient UVR to synthesize Vitamin D.
=> Dark skin prevents over-absorption of UVR, and prevents
breakdown of folic acid (Risks of anemia, birth defects, or skin
cancer).
Exception: Inuit (Greenland)
diet rich in fish and sea mammal blubber, high in vitamin D
Innate biological variablity –Culture-gene coevolution
as culture evolves,
it places new selection pressures on the genome, which also evolves in response to those pressures.
1: Cow domestication: lactase persistence
Culture-gene coevolution can be quite indirect
2: Farming yams in West Africa:
Acquired Biological Variability - Visual acuity
affected by cultural practices within a life-time.
children swim underwater to retrieve seafood ->
twice the underwater visual acuity as European children.
This is not a genetic adaptation —
European children can do the same through training.
Acquired Biological Variability - Obesity
What can explain increase in obesity rates?
1. Genetics?
2. Greater reliance on high-calorie foods (e.g. fast foods,
sodas)
3. Larger portion sizes
4. More sedentary lifestyle
5. Suburban lifestyle—more driving, less exercise
French paradox of obesity
French still eat significantly less calories a day than Americans.
Portion sizes
People eat what’s given to them, portioned.
Indeed, in comparison to portion sizes in the France:
USA yogurt containers are 80% larger.
McDonald’s serves 70% more fries in the United States per container
Portion size has been continuously increasing in USA
Attitudes toward food
French savor their food more than Americans.
Americans have more conflicting attitudes
Acquired Biological Variability - Height
Economic wealth of a country has close ties with the height of its
people.
More wealth brings healthier diet (more vitamins and nutrients),
especially at ages when growth spurts occur.
Fluctuations of countries’ heights across time have coincided with
broad societal changes that have an impact on diet.
Acquired Biological Variability - Age
Influenced by a number of factors, such as
1. Social and economic development (poverty in many African
countries, Monaco is incredibly wealthy)
2. Birth rates
3. Disease
4. Ongoing conflict
Health behaviour
Cultural differences in life-style and health-behavior are
associated with health
Health behavior - Diet
What remarkable cultural differences in eating (diet, rituals … )
that might influence health did you observe?