Here is the review of a book on the subject: <a href="https:&#x2F;&#x2F;www.theguardian.com&#x2F;science&#x2F;2016&#x2F;feb&#x2F;28&#x2F;the-life-project-helen-pearson-review-cohort-study" rel="nofollow">https:&#x2F;&#x2F;www.theguardian.com&#x2F;science&#x2F;2016&#x2F;feb&#x2F;28&#x2F;the-life-pro...</a>