Age Pyramids Research Paper

There are many possible reasons for the change in the age pyramids. One reason could have to do with the widening of the pyramid at almost every age particularly the older ages is better nutrition and medical advancements. Things like nutritional advancements and support allowed and still allows individuals to maintain their health. Medical advancements have helped treat medical conditions or injuries. This allowed individuals who would not have survived in the past the opportunity to recover and continue a productive life. Medical advances also help keep infants alive which has been part of the reason for the widening of the bottom of the pyramids in recent years.
Another reason for the widening of the pyramid at almost every level is immigration.