physical development in late adulthood and cognitive development in late adulthood
develop a framework for viewing late adulthood. One thing I think of is the large amount of variability among the young-old (65 to 84 years of age) and the oldest-old (85 years and older)and the individuals within each span of years. Keep this in mind as we study this stage. Please respond to the prompt below for your required 20-point two-page paper.

"What do we mean by life expectancy and how and why does it differ throughout the world? Tie this into the five main biological theories of aging which I am asking you to briefly summarize. Which one of these theories makes the most sense to you and why? Please cite studies from the text to substantiate your narrative." (20 points)
Integrate aspects of the textbook in your paper.
Must have citations!

Life-span development 15e is the book Santrock, McGraw Hill
Should be either chapter 17 or 18

Rubric

Answer All of the Questions Asked
Describe the Five Biological Theories of Aging
Include Personal Perspective
Well-written with Text Citations of Research

Just need citations from book

Book isbn 97800777861827