A delightful account of the scientific evidence for various hypotheses about how aging may affect our linguistic competencies, and vice versa. The wide-ranging topics covered span not only the usual concerns (e.g. how declines in other cognitive processes as memory and hearing/vision could affect our language ability) but also intriguing questions such as whether aging leads to decline in grammatical complexity, vocabulary size, and ability to decode ambiguous language (e.g. metaphor, sarcasm and verbal ironies), or increase in proneness for Tip of the Tongue (TOT) and Off-Topic Verbosity (OTV) (yes, these are scientific terms). The scientific evidence for many such alleged aging effects is surprisingly mixed/context dependent, and in some cases, contrary to popular beliefs, e.g. there is no decline in grammatical complexity, and actually an increase in vocabulary size, with normal aging; where there is decline, it is actually a tell-tale sign of the onset of Alzheimer's Disease (AD), e.g. an analysis of Ronald Reagan's meet the press statements shows a significant decline in grammatical complexity and vocabulary range long before he was diagnosed with AD. Intriguingly, a computer analysis of the voluminous works of my favorite author Agatha Christie shows no such decline - until the last few of her works.