• A diagnosis of one of the following: Rheumatoid Arthritis (RA), Sjogren's Syndrome, Systemic lupus erythematosus (SLE), Mixed connective tissue disease (MCTD), or Psoriatic Arthritis (PsA), as documented by their treating specialist or primary care provider, as reported by the participant.

• Must be age 18 and older, at time of consent.

• Must be fluent in both speaking and reading English.

• \*Study participant must be able to read and comprehend informed consent document and speak with study staff about study document content. Study staff will use discretion in determining whether the study participant can clearly communicate with staff and comprehend the study material during the consent call or prior to the call.

• Must have access to high-speed internet with devices capable of audio/video streaming.

• Must be willing to participate in an online health course designed to improve dietary intake and self-care routines to help improve cellular function and health, and complete online surveys over the course of a 6-month period.

• Individuals must pass the Short Portable Mental Status Questionnaire with scores for normal mental functioning (up to 2 errors). Cognitive impairment as measured by the SPMS Questionnaire could interfere with the completion of the online course.

⁃ SCORING\* 0-2 errors: normal mental functioning 3-4 errors: mild cognitive impairment 5-7 errors: moderate cognitive impairment 8-10 errors: severe cognitive impairment

⁃ \*Allow one more error for a subject with only a grade school education. Allow one less error for a subject with education beyond high school.

⁃ Source: Pfeiffer, E. (1975). A short portable mental status questionnaire for the assessment of organic brain deficit in elderly patients. Journal of American Geriatrics Society. 23, 433-41.