1. Mental health is the leading cause of sickness absence in the UK, costing an average of £1,035 per employee per year:
https://www.time-to-change.org.uk/get-involved/get-your-workplace-involved/employer-pledge

2. Organisations promoting wellbeing are three and a half times more likely to be creative and innovative:
https://www.bupa.co.uk/~/media/Images/Business/bupa-for-business-hub-may-17/wellbeing-edit/Bupa-Wellbeing-Edit-2017-FINAL.pdf

3. FTSE companies that prioritise employee engagement and wellbeing outperform the rest of the FTSE 100 by 10%:
https://wellbeing.bitc.org.uk/sites/default/files/final_ftse_100_workwell_public_reporting_benchmarking_report_0_0.pdf

4. Replacing an employee costs on average 21% of their pay:
https://hbr.org/2017/03/why-do-employees-stay-a-clear-career-path-and-good-pay-for-starters

5. 53% of millennials say a healthy work-life balance would make them stay at their job:
https://blog.accessperks.com/millennial-employee-engagement-loyalty-statistics-the-ultimate-collection

6. The Thriving at Work report puts the annual cost to the UK economy of poor mental health at up to £99bn, of which about £42bn is borne by employers:
https://blog.accessperks.com/millennial-employee-engagement-loyalty-statistics-the-ultimate-collection

7. 87% of human resource leaders say improved retention is a high/critical priority:
https://www.kronos.com/about-us/newsroom/employee-burnout-crisis-study-reveals-big-workplace-challenge-2017

8. Anxiety and depression among workers in the UK has bit a record high, rising by nearly a third in the last four years:
http://www.independent.co.uk/news/uk/home-news/depression-uk-stats-figures-anxiety-record-high-a7991056.html