Is This You?

You walk into a room and forget why. You lose a word mid-sentence, or you read the same paragraph three times. The brain fog has been around long enough that you've started to wonder whether it's something more.

Or maybe you feel sharp today, but you watched a parent or grandparent decline, and you want to know what you can do so that isn't your story. I know that's scary to think about. If Alzheimer's runs in your family, your risk does climb, but it's not destiny.

On my mother's side, twin sisters proved this. The active, health-minded twin postponed her diagnosis by fifteen years compared with her sedentary sister. Lifestyle matters, even with the same genes.

What I Test

You no longer need a PET scan or a spinal tap to check for early markers. A simple blood draw can now measure several of them, and I pair those with the metabolic and genetic markers that tell us where your risk is coming from:

• Fasting insulin and hemoglobin A1c, because high blood sugar and insulin resistance fuel inflammation in the brain.
• Homocysteine, a marker of vascular stress that correlates with cognitive decline.
• ApoE genotype, which shows your inherited risk profile and how aggressive we need to be.
• pTau217 and the amyloid-beta 42/40 ratio, which reflect the tangles and plaque specific to Alzheimer's.
• GFAP and neurofilament light chain, markers of inflammation and nerve cell injury.

I start screening at forty, or earlier with a strong family history, and we track your results over time.

What Could Be Driving It

Blood Sugar and Insulin Resistance

One of the biggest levers you can pull for brain health is keeping your blood sugar even, so you're not getting those spikes and crashes.

Blood Vessels and Inflammation

Your brain depends on healthy blood flow. What's good for your heart is, for the most part, good for your brain.

Hormones and Thyroid

Low thyroid function and shifting hormones can both show up as brain fog and poor memory, and both are things we can test and address.

Sleep

Deep sleep is when your brain does its housekeeping. Poor sleep, and sleep apnea in particular, takes a real toll over time. I cover that on my sleep page.

Mitochondria, Nutrients, and Toxins

Your brain is one of the most energy-hungry parts of your body. When your mitochondria aren't working right, or you're low in key nutrients, brain fog is oftentimes one of the first things you notice.

How We Work on It Together

Once we know where your risk is coming from, we build a plan around it. For most patients that includes stabilizing blood sugar, a Mediterranean-style way of eating with plenty of colorful plants and omega-3s, regular exercise, better sleep, and stress management. For some, I'll add intermittent fasting, targeted supplements such as B vitamins when homocysteine is high, or treatment for a hormone or thyroid issue.

I can't promise that we will prevent any disease. What we can do is find the risks that are in your control and work on them early, which gives you the greatest power to protect how your brain functions. I go into more detail in this article on detecting Alzheimer's risk early.