It’s common to wait until something feels “off” before making an appointment to see a healthcare provider. But waiting for noticeable symptoms can mean missing the chance to catch health issues early.

This article was reviewed by Felix Gussone, MD. Key Takeaways: Biomarker testing uses blood, saliva, or tissue to measure specific health metrics and provide insights into your body’s functioning.

Biomarker testing uses blood, saliva, or tissue to measure specific health metrics and provide insights into your body’s functioning. Testing can identify potential health issues early, track changes ...