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Your Blood Test Holds Clues About Future Health

If you’ve ever had blood drawn at your doctor’s office, chances are they ordered a Complete Blood Count (CBC) test.

It’s one of the most common blood tests out there—used billions of times each year to check for anemia, infections, and other issues.

But what if I told you this routine test might hold far more powerful clues about your future health?

Researchers are now uncovering a hidden benefit of your blood test results…

Your personal “normal” levels could reveal early signs of disease—long before symptoms appear.

Most blood test results are compared to a “one-size-fits-all” range—a general set of numbers that represent what’s considered normal for the average person.

For example:

  • Platelets (help your blood clot): 150 to 400 billion cells per liter.
  • White blood cells (immune cells): 4.0 to 11.0 billion per liter.

But here’s the kicker: Your body may operate on a much narrower range—your own personal “set point.”

What’s normal for the general population might not be normal for YOU.

For instance, if your white blood cell count usually hovers around 4.5 to 7.5, even a slight shift might signal something your doctor would otherwise miss.

Using data from over 50,000 patients, scientists developed a tool to estimate each person’s unique set points. Here’s what they found:

  • Personal blood ranges are 3x smaller than population-based ranges.
  • Even small changes within your range can predict future issues like:
    • Iron deficiency
    • Chronic kidney disease
    • Type 2 diabetes

For example, people with higher-than-normal white blood cell set points were:

  • At higher risk for Type 2 diabetes.
  • Nearly twice as likely to die from any cause compared to those with lower set points.

Now, before you panic: Your CBC results aren’t destiny. But they can be a powerful tool to help you take control of your health.

Here’s what you can do to be proactive:

  • Know Your Numbers: Ask your doctor for a copy of your blood test results and track them over time.
  • Pay Attention to Patterns: Even small changes in your “normal” can offer early clues about your health.
  • Prioritize Prevention: Take steps to manage inflammation and protect your health naturally:
    • Get regular exercise.
    • Eat an anti-inflammatory diet rich in whole foods, vegetables, and healthy fats.
    • Reduce stress and prioritize quality sleep.
  • Work With Your Doctor: Use your blood test history to guide conversations about your unique health risks.

Your blood test isn’t just a snapshot—it’s a roadmap. By paying closer attention to your personal set points, you can catch subtle changes before they become bigger problems.

This is the future of personalized medicine. And it’s already in your hands.

Here’s to a healthy, proactive start to the upcoming new year,

Rachel Mace
Managing Editorial Director, e-Alert
with contributions from the research team

Sources:

The Conversation. (2024, December 14). This Crucial Reading in Your Blood Can Predict Future Disease Risk. ScienceAlert. https://www.sciencealert.com/this-crucial-reading-in-your-blood-can-predict-future-disease-risk

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