Appendicitis occurs when the appendix becomes blocked, often by stool, a foreign body, or cancer. Blockage may also occur from infection, since the appendix swells in response to any infection in the body.
A familial generation is a group of living beings constituting a single step in the line of descent from an ancestor. In developed nations the average familial generation length is in the high 20s and has even reached 30 years in some nations.
Although the Boomers are one of the more stark examples of generational change, most generations do this to some extent. And the most recent generation to get its own name, the Millennial Generation (born 1980 to about 2000), is no different. Studying generations is no easy business, however. Dividing and defining people by their birth years can seem like an arbitrary oversimplification. And to some degree, it is.