We examine the evidence, from divorce rates to life expectancy https://www.economist.com/1843/2017/06/26/whats-the-best-age-gap-in-a-relationship?taid=6a5d6e6b6f830000013a848c&utm_campaign=editorial-social&utm_content=discovery.content&utm_medium=social-media.content.np&utm_source=twitter