Questions people ask about Cortisol Test

Cortisol tests measure the level of the stress hormone cortisol, typically in saliva, blood, or urine. They are often marketed as wellness tools to assess stress or adrenal fatigue. However, the scientific evidence supporting home cortisol tests is weak. Cortisol follows a strong circadian rhythm and is influenced by many factors: sleep, diet, exercise, psychological stress, and medications. A single measurement provides little insight into long-term health. Clinically relevant disorders like Cushing's syndrome or Addison's disease require repeated, validated lab tests and physician evaluation – not home kits. MyBody-X may offer hormone tests, but the provided context lacks specific details about cortisol measurement or validation. Therefore, caution is warranted: results can cause unnecessary worry or lead to inappropriate actions. For genuine symptoms like chronic fatigue, weight changes, or sleep disturbances, consulting a doctor is essential. The evidence for the utility of home cortisol tests is unclear – they are best categorized as marketing products.