Hint: You can also subscribe to specific health/medical entities youtube pages (e.g. Mayo Clinic, NIH, CDC)
Using Youtube to find videos that may be free to use and/or modify.
- Go to Youtube: https://www.youtube.com/ and perform a search.
- On the results page, click the Filters icon on the right-hand side, under the Features section click "Creative Commons".
- Sometimes, a license can be found for a particular video in the About section of the video as well.