A 2015 study tracked healthcare utilization among participants in mind-body programs that included yoga, meditation, and stress management. Over the study period, participants used 43% fewer medical services than they had in the year before starting the program. Emergency room visits and hospital admissions both declined significantly.
The reduction was observed across different types of medical services, suggesting broad health improvements rather than improvement in a single condition. The cost implications are substantial, both for individual practitioners and for healthcare systems dealing with rising expenses.
This is one of the few studies that moves beyond specific health outcomes to measure overall healthcare burden. It suggests that yoga and related practices function as a form of preventive medicine, reducing the downstream need for medical intervention. The 43% figure is large enough to be clinically and economically meaningful.
Source: Yoga Research: Immunity & General Health on ashtanga.tech. Original research.

