Essay On Longevity

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Average longevity refers to the age at which half the individuals born in a particular year will have died. Maximum longevity refers to the oldest age to which any individual of a species lives. There are many factors that come into play to affect both maximum and average longevity, such as genetic and environmental factors. Some genetic factors refer to diseases that are hereditary, like heart or brain disease that end up slowing down or even reversing the development and strength of each organ. Some environmental factors are disease, toxins, the lifestyle of the individual, and their social class. One other major factor that effects the results of average longevity is the gender differences we experience. Women, on average, live about seven…show more content…
At best, it may be heavily slowed and the aging process can be dragged out, but it is at this point almost impossible to carry out. Moral issues aside, there are way too many variables to consider to fully address. Each individual has specific experiences and factors that affect their particular rates of growth, development, and eventual degeneration. It would not be until many generations from now that we successfully are able to slow down or even halt the aging process, which definitely is still a possibility given the expansive reach of human technology currently. It is just more difficult to pinpoint what processes need to be considered and addressed, and analyze what is within the realm of our…show more content…
For example, there is HAROLD, or hemispheric asymmetry reduction in older adults. This suggests that bilaterality, or using both hemispheres to tackle one task, is compensatory, albeit reduced cognitive activity. Additionally, there is CRUNCH, or compensation-related utilization of neural circuits hypothesis. This is very similar to HAROLD, but it suggests that there are more mechanisms at work. Aging brains tend to over-utilize other regions of the left hemisphere before switching to the right as a compensatory technique. It uses up the resources that it can in one hemisphere before moving to the right one to better and more thoroughly gather all the information it can on the subject. Finally, there is STAC, or scaffolding theory of cognitive age. Scaffolding refers to building connections upon previously existing ones, especially in older brains where they continue to perform at high levels despite the deterioration that has

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