2017 study
  • chronic kidney disease
  • cardiovascular disease
  • diabetes
2015 study
  • psoriatic arthritis
  • inflammatory bowel disease
  • depression
  • uveitis
  • metabolic syndrome
  • cardiovascular disease
  • chronic obstructive pulmonary disease
2020 study
  • vitiligo
  • diabetes
  • thyroiditis
  • rheumatoid arthritis
has yet to be proven
American Academy of Dermatology
  • It may be harder to reach areas of the body where you need to apply topical treatment.
  • Skin may become thin, or it may bruise or tear more easily when you apply a topical corticosteroid.
  • Light therapy may be challenging because of the time spent on your feet while standing in a light box.
  • Skin may be sensitive to light due to medications you’re taking for other health conditions, which makes light therapy more challenging.
  • Some systemic drugs may be riskier to take because of differences in kidney function as you age.