Links:

https://support.google.com/websearch/answer/11181469

https://www.nhs.uk/mental-health/conditions/generalised-anxiety-disorder/overview/

https://www.nhsinform.scot/illnesses-and-conditions/mental-health/anxiety

https://www.oxfordhealth.nhs.uk/camhs/self-care/anxiety/

https://www.mayoclinic.org/diseases-conditions/anxiety/symptoms-causes/syc-20350961