1. Describe the diagnostic criteria of osteoarthritis versus rheumatoid arthritis
2. Discuss types of headaches and their treatment 
3. Discuss types of seizures and treatment
4. Discuss Parkinson's disease, its causes, symptoms, and treatment

Submission Instructions:

• Your initial post should be at least 500 words, formatted and cited in the current APA style with support from at least 2 academic sources.
  • Each question must be answered individually as in bullet points.