BAT Levels 101

How Are BAT Levels Measured?

BAT Levels are measured with a simple blood test, but the science and logistics behind it set this protocol apart from anything else in brain health. Here’s exactly how it works, what’s unique, and how you can get started.

What Are BAT Levels and Why Measure Them?

BAT Levels reflect how much beta-amyloid and tau protein has built up in your blood, key biomarkers linked to early biological drift in the brain. Unlike traditional cognitive tests that wait for symptoms, BAT Levels give you a real-time signal about your brain’s maintenance system, often years before trouble begins.

The BAT Levels Blood Test

Testing BAT Levels starts with a standard blood draw, performed at a certified partner lab or by a mobile phlebotomist. No spinal tap, no brain scan, and no at-home fingerprick kits, just a professional blood collection for maximum accuracy.

The test specifically measures:

Beta-Amyloid 42/40 ratio (Aβ42/40)
Phosphorylated Tau (p-Tau)
Optional: metabolic and inflammatory markers (as part of a Factor Check if needed)

Lab Processing and Analysis

After your blood is drawn, the sample is securely sent to a certified laboratory specializing in biomarker analysis. Using advanced technology like immunoassay and high-sensitivity mass spectrometry, your BAT Levels are quantified with strict chain-of-custody protocols.

Certified labs follow rigorous standards to ensure:

Consistent accuracy
Quality controls with every batch
Secure handling and reporting

From Raw Data to BAT Levels Score

Your test doesn’t just deliver raw numbers. BAT Levels results are run through the proprietary BAT LEVEL INDEX™, an algorithm that combines multiple biomarker concentrations, adjusts for age and risk factors, and produces a single, actionable BAT Score™.

This makes it easy for patients and providers to interpret results and take the right next steps.

Quality, Accuracy, and Reliability

Why don’t we offer at-home kits? Because certified labs offer gold-standard reliability. Every BAT Levels test includes:

Double-checked controls and calibrations
Routine proficiency testing
Ongoing validation against published science and real-world evidence

Your results are reviewed by both automated systems and human experts to prevent errors or mix-ups.

How BAT Levels Testing Differs from Other Brain Health Tests

Most brain health tests look for memory loss or symptoms after the fact. BAT Levels are different, they measure change years before symptoms, by analyzing what’s happening biologically, not just functionally.

Unlike cognitive tests, which can be influenced by stress, fatigue, or mood, blood-based BAT Levels reflect what’s happening inside your body, directly, objectively, and with repeatable precision.

Who Can Get BAT Levels Testing and How?

Most adults over 40, or anyone 30+ with family history, chronic inflammation, or other risk factors, are eligible. Here’s how the process works:

Find a provider: BATWatch network or participating clinician.
Schedule a blood draw: At a certified lab or with a mobile phlebotomist.
Get tested: The draw takes less than 10 minutes.
Review your results: Delivered securely, with clear interpretation and recommended next steps.

Understanding Your Results

After testing, your results are reported as a BAT Score™ (0–100 scale) using the BAT LEVEL INDEX™. This single number shows where you stand:

Optimal: 90–100
Early Drift: 70–89
Confirmed Drift: 50–69
High Accumulation: Below 50

Your provider will help you interpret the score and create a plan for retesting, further evaluation, or intervention if needed.

Frequently Asked Questions

Can I do this test at home?
Not currently. Only certified labs or mobile phlebotomy can guarantee the accuracy and reliability needed for BAT Levels.

How long do results take?
Most results are available within 7–10 business days, depending on lab volume and your provider’s workflow.

Do I need to retest?
Annual retesting is recommended for most, or sooner if your BAT Score™ is in the “drift” or “high” range.

Ready to Check Your BAT Levels?

Getting your BAT Levels measured is a powerful first step to owning your brain health future. Book your BAT Levels test or talk to a BATWatch provider to learn more.