Riepilogo di sviluppo attraverso la vita
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Module 1: Human development

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Health and Human Development - Summary of development across the lifespan


Summary of development across the lifespan

Over a lifespan, development occurs with a certain predictability.
However, variables such as socioeconomic levels, nutrition and level of
education influence development.

PRENATAL
Increase in number and size of nerve cells to attain 25% adult brain
weight and size at birth. Brain is particularly susceptible to teratogens
in weeks 3 to 5 in the embryonic period.

INFANCY
Extensive and rapid growth.

CHILDHOOD
Slows down. 75% of adult sized brain at age 3 and brain reaches maximum
size by age 10.

ADOLESCENCE
Nerve connections and associations continue to build up. Myelination
continues.

ADULTHOOD
No likely change to capacity.

LATE ADULTHOOD
65-70 year olds in an industrialised country have lost 20% of nerve
cells that were present at birth. This leads to less acuity but not
capacity.

Development across the lifespan.

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