https://www.nps.gov/articles/featured_stories_oxhi.htm
A History of Healing (U.S. National Park Service)
u s national parkhistory of healingservice
https://www.outlookindia.com/brand-studio/blogs/part-science-part-magic-an-illuminating-history-of-healing-with-light
Part Science, Part Magic: An Illuminating History Of Healing With Light | Outlook India
Light as a healing tool remains part science and part mystery. Ancient practices using sunlight laid the groundwork for a field that has now evolved into...
history of healing