PSYC 2450 Chapter Notes - Chapter 10: Endorphins, Physical Attractiveness, Crystallization

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What are the key markers: acceping responsibility for oneself, making independent decisions, becoming inancially independent. These 3 criteria rank highest across cultures and naions, ethnic groups, age groups, + social classes. All 3 are characterized by individualism,; all 3 emphasize the importance of learning to stand alone as a self-suicient person w/out relying on anyone else. Less risk taking/behaviours (substance abuse, unprotected sex w/ many partners) Hormone growth declines, skin is looser, muscle mass decreases, wrinkles. Ppl w/ white skin tend to exhibit aging more than darker skin esp. in sun! Heart muscle starts to become more rigid, but is not noiceable except during imes of intense physical acivity when there is a decrease in max heart rate, decreasing the amount of oxygen the heart can deliver to the body. More deposits of cholesterol and fat in arteries. Producion of disease ighing t cells gradually reduces, ceasing enirely by age 50.

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