Could a common virus trigger Alzheimer’s?

New research points to a surprising culprit

Good morning friends,

Alzheimer’s disease has long been blamed on age and genetics—
But new research suggests something more alarming:

A common viral infection may be playing a much bigger role than we thought.

Let’s break it down.

The herpes-Alzheimer’s connection
Recent studies have found that the herpes simplex virus (HSV-1) may significantly increase the risk of Alzheimer’s—especially in people who carry the APOE4 gene.

In brain-like tissue models, HSV-1 infections triggered:

• Tau tangles (a key feature in Alzheimer’s)
• Oxidative stress
• Inflammation in brain cells

Even more concerning?

Other viruses—like Varicella Zoster (VZV), which causes shingles—can reactivate dormant HSV-1 in the brain, accelerating neurodegeneration.

What this means for you
Some studies remain mixed, but early data shows antiviral treatments may reduce dementia risk in those with HSV-1.

This could be a game-changer in prevention—but it also means your daily habits matter more than ever.

How to reduce your risk starting today

  1. Strengthen your immune system
    Prioritise nutrient-dense foods, deep sleep, and daily stress regulation

  2. Cut sugar and ultra-processed foods
    They suppress immune function and create the perfect environment for viral reactivation

  3. Get a DNA test
    Knowing whether you carry the APOE4 gene can help you take early and personalised action

This new research reminds us: chronic illness doesn’t come out of nowhere.
It builds silently—and often starts years before symptoms appear.

Worried about cognitive decline or family history of Alzheimer’s?
Book a call with my team and let’s explore how your immune system and genetics may be influencing your brain health.

To your health,