PSYC 357 Chapter : ch 4 Physical changes Textbook notes and definition

• School: Simon Fraser University
• Department: Psychology
• Course: PSYC 357
• Professor: Wendy Loken Thornton

Document Summary

Mid/late 30s = skin starts to show small wrinkles, slight drooping or loss of resilience, some color changes. Increasing age = more translucent = easier to see underlying bones and veins especially in hands. Discolorations and small outgrowths accumulate = 50s = especially face shows distinctive marks of aging. Collagen undergoes cross-links = skin becomes less flexible. Middle adulthood=layer starts thinning = = less support for layers above it = exacerbates wrinkling and sagging g caused by dermis. Capillaries and arteries may dilate + more visible due to loss of subcutaneous fat. Large irregularities in blood vessels varicose veins may develop + appear on skin of legs = appearance can change fast with aging. Nails toenails = grow more slowly + may be yellowed, thicker, ridged = may develop fungal infections in toenails = thicken and separate from nail bed. Skin aging = genetic background (most)role fair skinned = display more rapid effects of aging than dark more.