An interesting snippet from pg 150 of Never Enough: Donald Trump and the Pursuit of Success:
When first used by psychologist Alfred Adler in 1929, lifestyle referred to strategies people used to avoid dealing with problems or uncomfortable situations. The word was repurposed in the 1960s to mean something akin to “way of living.” In 1967 a new magazine called Avant Garde promised to explore the “life-style” of the “mad mod scene,” and the journalist Gloria Steinem used the hyphenated version of the word in an article for The New York Times. Within a decade, advertisers and consumers understood the term as a catchall that suggested social class, taste, and apparent wealth.
Mark Carrigan 