• From the moment we are first conceived, to the day we die, we are constantly changing and developing.
• While some of the changes we undergo are as a result of chance incidents and personal choices, the vast majority of life changes and stages we pass through are due to our common biological and psychological heritage as human beings and are shared by all people.
• It\'s important to be aware of the stages that all people go through including birth, infancy, adolescence, adulthood, old age and finally death.
• Knowledge about how human lifespan development is supposed to unfold is important becuase it serves as the base upon which our life problems sit.
• Knowing something about how people typically develop themselves over time thus helps us to place our problems and illnesses into context, and also suggests ways that our problems can be fixed.

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