Your brain age is a measure of your cognitive performance relative to what's typical for your biological age. A 45-year-old with the reaction time, working memory, and processing speed of a 35-year-old has a brain age of 35. And the reverse is equally possible.
Brain age isn't just a novelty — research shows it predicts cognitive decline trajectory and responds meaningfully to lifestyle interventions.
What Does Brain Age Actually Measure?
Legitimate brain age assessments measure cognitive functions that show predictable age-related changes:
- Processing speed — how quickly you can perceive and respond to stimuli (peaks at ~20, declines ~0.5% per year after 30)
- Working memory — how many items you can hold and manipulate simultaneously (peaks at ~25, declines gradually)
- Reaction time — simple go/no-go response latency (peaks at ~20, increases ~2ms per year after 30)
- Fluid intelligence — novel problem-solving ability (peaks at ~25, gradual decline)
- Episodic memory — memory for events and new information (declines from late 20s)
Brain Age Norms by Biological Age
Can You Reduce Your Brain Age?
Yes — and the evidence is compelling. The ACTIVE study (Advanced Cognitive Training for Independent and Vital Elderly), which followed 2,802 adults over 10 years, found that targeted cognitive training produced measurable improvements that persisted for a decade after the training period ended.
Key lifestyle factors that reduce brain age:
- Aerobic exercise — the most consistently effective intervention; 150 minutes per week reduces brain age by 5–10 years in some studies
- Cognitive training — especially working memory and processing speed training
- Social engagement — strong social networks are among the most robust predictors of preserved cognitive function in older adults
- Sleep quality — poor sleep accelerates amyloid buildup associated with Alzheimer's disease
- Mediterranean diet — associated with slower cognitive decline in multiple large studies
How Cebear Measures Brain Age
Cebear doesn't give you an explicit "brain age" number, but it tracks the cognitive metrics that determine brain age: reaction time (Reaction Time game), processing speed (Math Rush, Reaction Time), working memory (Memory Match, Simon Says), and fluid reasoning (pattern recognition, matrix logic).
Your IQ score on Cebear reflects your performance on all of these relative to the population — which is a strong proxy for cognitive age relative to your biological age.
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