Kaitlin Sullivan is a health and science journalist based in Colorado. She's been part of multiple award-winning investigations into health topics including the international medical device industry ...

Psychology Today's online self-tests are intended for informational purposes only and are not diagnostic tools. Psychology Today does not capture or store personally identifiable information, and your ...

Julia is the associate news editor for Health, where she edits and publishes news articles on trending health and wellness topics. Her work has been featured in The Heights, an independent student ...

A potassium blood test measures the potassium level in your blood to check your general health and diagnose conditions. Potassium helps regulate important body functions like muscle contractions and ...

Skin tests for allergies include skin prick testing, intradermal testing, and skin patch testing. Skin tests are generally safe but can cause irritation or, rarely, a severe allergic reaction called ...