Originally Posted by ImportConvert

A 1-year old is one year of age. An 80 year old is 80 years of age. A middle-aged person is 40.

That's my math.

If you want to use the medical terminology, 50 would be...wait...let me dig out my text book...

12-20-adolescence
20-40 young adulthood
40-60 middle adulthood
60-death late adulthood

So you are right, if you are saying "Middle-aged adult", or "middle adulthood".

Levinson's model to the seasons of life, however, vindicates my definition as relates to the term "midlife crisis", as Levinson defines the early 40's as a period in life "...marked by intense psychological turmoil."*

Also, the quote "an 8-ball and 2 hookers" is a modification of the MSI Lyric "2 hookers and an 8-ball". hence my reference to MSI.

*Feldman, Robert. "Social and Personality Development in Middle Adulthood." Development Across the Life Span. Upper Saddle River, New Jersey 07458: Pearson Prentice Hall, 2006. 563. Print.

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Not trying to be a ****, but I payed a ton for that text-book and am trying to just get my $$ out of it since they came out with a new edition with some diagram or an added page or some crap and wouldn't buy it back at the end of the semester.