Learn About Your Brain

Evidence-based articles on memory, focus, brain health, and cognitive science. Understand the science, separate fact from fiction, and discover practical strategies.

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Brain Health

Reading Rewires Your Brain. Scrolling Unravels It.

100 hours of reading grew new white matter in children's brains. A meta-analysis of 98,299 people linked short-form video to worse attention and weaker self-control. Here's what the imaging research actually shows about how reading and scrolling reshape your brain in opposite directions.

14 min read
Aging & Longevity

Memory Games for Older Adults: What Science Actually Shows

Do memory games for older adults actually work? Here's what decades of clinical trials say about how memory changes with age, which games and platforms have real evidence behind them, and how to build a cognitive training routine that fits your life.

20 min read
Research & News

How Many Neurons Are in the Human Brain?

The human brain has about 86 billion neurons. Not 100 billion. The 100 billion figure was repeated in textbooks for decades, but nobody ever actually counted that many. The real number comes from a 2009 study by Brazilian neuroscientist Suzana Herculano-Houzel and her team, who developed a method that involved, essentially, dissolving brains into soup and counting the nuclei.

17 min read
Brain Health

How Exercise Improves Brain Health: The Complete Guide

Exercise is one of the most powerful things you can do for your brain. This guide breaks down the science of how movement improves cognition, mental health, and protects against dementia.

27 min read
Brain Health

The Glymphatic System: How Sleep Cleans Your Brain

During sleep, your brain activates a powerful waste clearance system called the glymphatic system. Learn how it works and why it's essential for brain health.

21 min read
Aging & Longevity

How the Brain Ages: What Changes and What Doesn't

Aging affects the brain in complex ways. While some cognitive functions decline, others remain stable or even improve. Learn about the neuroscience of brain aging and strategies to maintain cognitive health.

23 min read