1. https://www.gallup.com/workplace/215924/well-being.aspx
5. https://www.metlife.com/content/dam/metlifecom/us/noindex/pdf/ebts-2023/MetLife_EBTS_2023.pdf
6. https://www.gallup.com/workplace/236927/employee-engagement-drives-growth.aspx
7. https://stanmed.stanford.edu/cyclic-sighing-stress-relief/
8. https://www.cell.com/cell-reports-medicine/fulltext/S2666-3791(22)00474-8
9. https://scopeblog.stanford.edu/2023/02/09/cyclic-sighing-can-help-breathe-away-anxiety/