2019 Wilkins–Bernal–Medawar lectureLife begins at 40: the demographic and cultural roots of the midlife crisis | Notes and Records: the Royal Society Journal of the History of Science royalsocietypublishing.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from royalsocietypublishing.org Daily Mail and Mail on Sunday newspapers.