a sudden increase in rates of growth and development at puberty
adolescent growth spurt
the environment in which our ancestors evolved which explains our current genome
ancestral environment
the ancestral diet
high in protein & carbs, low in fats & salts (modern western diet is the opposite)
begins at conception & continues to birth, almost purely biological growth and development, identity begins to form
prenatal phase
birth to weaning, 3 to 4 years long
infancy
weaning to puberty, most social learning takes place
childhood
puberty to end of skeletal growth
adolescense
a girl’s first menstruation, almost always a sign of puberty
menarche
end of physical growth to end of reproductive years
adulthood
end of reproductive years to death, 1/3 of life
post reproductive phase
non-reproductive, elderly grandparents, serving as a second set of parents
grandmother hypothesis
the decline in physiological functioning
senescence
