Blood Health
Reactive Lymphocytes %
What This Marker Tells Us
Indicates what percentage of your white blood cells are activated lymphocytes responding to a current infection—most commonly viral.
Why It Matters
Reflects the intensity of your immune system’s antigen response and helps distinguish viral from bacterial patterns.
How to Interpret Your Trends
Higher percentages correspond to active viral infection. Extremely high values suggest conditions like mononucleosis. Declines show immune resolution.
What Influences This Marker
EBV, CMV, influenza, viral hepatitis, stress, immune activation.
How Your Team Uses It
Your team uses elevated percentages to reduce training load, emphasize rest, and support immune recovery strategies.
Related Signals We Also Review
Lymphocyte count, WBC, liver enzymes, fatigue and symptom logs.