Electric motor start/stop frequency versus useful life

Hello, does anyone have any data on how often a motor starts/stops versus its useful life? My intuition says that the more often a motor starts/stops, the shorter its life will be, but I can't find any data on it. There's lots of research on heat and loading versus useful life, but I can't find anything on start/stop frequency... Thanks!

submitted by /u/noquarter53
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