Tests that measure hormone levels involved in reproduction, stress, and metabolism.
PSA is a protein produced by prostate cells and measured in blood as part of prostate cancer screening and monitoring. Interpreting PSA requires considering age, prostate size, rate of change, and other factors — a single number rarely tells the full story.
Testosterone is the primary male sex hormone and plays important roles in muscle mass, bone density, libido, and mood in both men and women. Levels peak in the morning and decline with age.
Cortisol is the body's primary stress hormone — essential for blood sugar regulation, immune response, and blood pressure. Testing requires strict attention to timing because cortisol follows a powerful circadian rhythm.
