What is NeuroAge and how does it measure brain age?
NeuroAge is a brain-age assessment built by Dr. Christin Glorioso, an MIT-trained physician-neuroscientist who is also an APOE4 carrier. It produces a single number telling you how many years younger or older your brain is compared to your chronological age. The score combines four assessments: an RNA blood panel measuring 52 biomarkers that capture what's actually happening in your neurons, a brain MRI with 3D mapping that tracks hippocampal volume and white matter health over time, cognitive gaming that tests reaction time, memory, and processing speed versus same-age peers, and a 300+ gene panel because APOE4 is only about 30 percent of your genetic Alzheimer's risk. Phoenix members get 20 percent off with code PHOENIX.
Can APOE4 carriers cancel out their genetic Alzheimer's risk?
According to Dr. Christin Glorioso's 20 years of MIT research, yes. APOE4 carriers who were biologically 5 years younger in brain age had Alzheimer's risk BELOW the general population average, completely canceling out the genetic disadvantage. The opposite is also true: carriers whose brain age skewed older showed significantly elevated risk. The key insight is that brain aging is separate from your genetics, meaning it's modifiable through lifestyle interventions and now measurable through tools like NeuroAge. This reframes APOE4 from a fixed destiny into a high-leverage starting point where small improvements in brain aging produce disproportionate risk reduction.
Is APOE4 the only genetic Alzheimer's risk factor?
No. APOE4 accounts for approximately 30 percent of your total genetic Alzheimer's risk, which means roughly 70 percent comes from other genes. This is why NeuroAge includes a 300+ gene panel rather than just testing APOE. Other genes involved in lipid metabolism, neuroinflammation, amyloid clearance, and synaptic function all contribute to overall risk. For APOE4 carriers, knowing your full genetic picture helps prioritize which interventions will have the biggest impact. Two APOE4 carriers with identical APOE status can have very different total genetic risk based on these other genes, which means personalized protocols matter.
What are the four components of a NeuroAge assessment?
NeuroAge combines four assessments to produce a single brain-age score. First, an RNA blood panel measuring 52 biomarkers captures what is actively happening in your neurons from a blood draw. Second, a brain MRI with 3D mapping tracks hippocampal volume, white matter health, and brain shrinkage rates over time. Third, cognitive gaming measures reaction time, memory, and processing speed benchmarked against people your same age. Fourth, a 300+ gene panel provides the genetic context beyond just APOE4. The four streams combine into one actionable number that you can track across retests to see whether your interventions are actually slowing brain aging.
