PS102 Chapter Notes - Chapter 4: Telomere, Collagen, Retina
Document Summary
Timing and form of such milestones now more variable than in early days. Strength, reaction time, overall body function at peak during 20s. Have more difficulty seeing in the dark because pupils shrink (less light reaches retina) Less sensitive to high frequency sounds, especially men. Become shorter and thinner due to skeletal and metabolism changes. Series of changes in hormonal function that leads to end of menstrual cycle and reproductive capabilities. Shifts in mood due to sudden changes in levels of hormones. Environmental factors (stress, diet, life experience) have dramatic influence on course and impact of changes. New neurons keep being formed in certain parts of the brain throughout our lives, including during adulthood. May be result of new learning and play role in further learning. Once adults hit 40s and 50s, recovering info from long-term memory takes longer. During 60s and 70s, memories and confidence in ability to solve problems declines.
