- www.medicalnewstoday.com/articles/323324
- www.nimh.nih.gov/health/publications/stress/index.shtml
- https://www.discovermagazine.com/health/can-stress-loneliness-and-sleep-deprivation-make-you-more-prone-to-covid-19
- https://psychcentral.com/lib/long-term-effects-of-chronic-stress-on-body-and-mind#1
- www.frontiersin.org/articles/10.3389/fpsyt.2021.585952/
- https://www.mayoclinic.org/healthy-lifestyle/stress-management/basics/stress-basics/hlv-20049495