This has good general information on Polish culture as it relates to care. However, this document is from an Australian health service, so some of the organizations listed and demographic statistics are not relevant to the United States.
Kampo, or traditional Japanese medicine, is prescribed alongside Western medicine in Japan. This short article is an overview of Kampo.
Nakagawa, T., Cho, J., Gondo, Y., Martin, P., Johnson, M. A., Poon, L. W., & Hirose, N. (2018). Subjective well-being in centenarians: a comparison of Japan and the United States. Aging & Mental Health, 22(10), 1313–1320. https://doi.org/10.1080/13607863.2017.1348477