Maturation

Arnold Gesell, a psychologist, pediatrician, and educator in the 1940s, was very interested in child development. From his numerous observations of children, Gesell formulated a theory known as maturation. This theory stated that developmental changes in a child's body or behavior are a result of the aging process rather than from learning, injury, illness, or some other life experience. Gesell's idea of maturation was rooted in the biological, physiological, and evolutionary sciences. As a result, Gesell centered most of his theory on the power of biological forces, which he felt provided momentum for development to occur. Gesell and his contemporaries proposed that development follows an orderly sequence and that the biological and evolutionary history of the species decides the order of this sequence. Maturation supports the idea that each child's unique genetic and biological makeup determines the rate of development regardless of other potential environmental influences.

See also: GESELL, ARNOLD; MCGRAW, MYRTLE BYRAM; MOTOR DEVELOPMENT; STAGES OF DEVELOPMENT

How to Stay Young

How to Stay Young

For centuries, ever since the legendary Ponce de Leon went searching for the elusive Fountain of Youth, people have been looking for ways to slow down the aging process. Medical science has made great strides in keeping people alive longer by preventing and curing disease, and helping people to live healthier lives. Average life expectancy keeps increasing, and most of us can look forward to the chance to live much longer lives than our ancestors.

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