PSYCH 3400 Lecture Notes - Lecture 27: Emerging Adulthood And Early Adulthood, Cardiac Muscle, Premarital Sex
Document Summary
Skeleton: our height peaks at age 20 and then, due to the compression of the joint cartilage and bones, declines, especially after midlife, so by age 70, we are roughly 2-5 percent shorter. Muscles: the contracting skeletal muscle fibers allow us to perform physical tasks, as we age, these fibers atrophy and are replaced by fat, causing an average 30-40 percent decline in strength by the 70s. Active adults: adults are becoming more sedentary over time. Heart disease, stroke, cancer: lowest in emerging adulthood (18-late 20"s) Also showed value of health from self-reported surveys. Emerging adulthood: defined by testing out different possibilities and developing self, not a universal life stage (only exists for a minority of young people) Feeling in between : begins after high school and tapers off by late 20"s. Median age for marriage has been pushed back later due to education, birth control, and acceptance of premarital sex.
