According to American Indian and Alaskan Native beliefs, what are the causes of

According to American Indian and Alaskan Native beliefs, what are the causes of illness?
Describe some plants and herbs that are used for healing.
Describe what medicine men are and their approach to healing.
Submission Instructions:
Your initial post should be at least 500 words, formatted, and cited in current APA style with support from at least 2 academic sources. Your initial post is worth 8 points.