Biohack Your Brain audiobook cover - How to Boost Cognitive Health, Performance and Power

Biohack Your Brain

How to Boost Cognitive Health, Performance and Power

Kristen Willeumier

4.6 / 5(1120 ratings)

If You're Curious About These Questions...

You should listen to this audiobook

Listen to Biohack Your Brain — Free Audiobook

Loading player...

Key Takeaways from Biohack Your Brain

Learning Tools

Reinforce what you learned from Biohack Your Brain

Mind Map

Biohack Your Brain
Brain Mechanics+
Blood Circulation+
Brain-Forward Diet+
Hydration+
Mental Fitness+
Stress Management+
Rewiring Thoughts+

Quiz — Test Your Understanding

Question 1 of 8
How does neuroscientist Kristen Willeumier metaphorically describe the human brain?
  • A. As a hydraulic machine that relies on fluid dynamics
  • B. As an advanced supercomputer that stores digital memory
  • C. As a high-powered sports car that requires regular maintenance and top-quality fuel
  • D. As a complex telephone network that routes billions of messages
Question 2 of 8
Why does the brain require approximately 20 percent of the body's blood supply despite only making up 2 percent of its weight?
  • A. To regulate the electrical temperature generated by billions of firing neurons
  • B. To deliver essential oxygen and glucose, and to rinse away harmful substances like amyloid-beta protein
  • C. To maintain the brain's 75 percent water composition and prevent immediate dehydration
  • D. To produce and distribute cortisol during periods of acute or chronic stress
Question 3 of 8
According to the text, what specific roles do berries and seafood play in protecting against cognitive decline?
  • A. Berries provide complex carbohydrates for energy, while seafood provides protein for neurogenesis.
  • B. Berries hydrate the brain's tissues, while seafood clears out amyloid-beta proteins.
  • C. Berries increase fluid intelligence, while seafood increases crystalized intelligence.
  • D. Berries provide antioxidants that reduce inflammation, while seafood provides omega-3 fats to protect nerve fibers.
Question 4 of 8
What happens to the brain when you lose just 1 percent of your body weight to water loss?
  • A. It causes fatigue, loss of focus, and slower reaction times.
  • B. It permanently halts the process of neurogenesis in the hippocampus.
  • C. It shrinks the amygdala, reducing your emotional intelligence.
  • D. It triggers an immediate 20 percent drop in blood flow to the central nervous system.
Question 5 of 8
Which specific activity does a 2013 Science study identify as a way to simultaneously boost crystalized, fluid, and emotional intelligence?
  • A. Learning a new vocabulary word every day
  • B. Reading long-form narrative fiction
  • C. Regularly solving jigsaw and sudoku puzzles
  • D. Writing stories, poems, or diary entries
Question 6 of 8
How does chronic stress physically alter the brain in a way that creates a vicious cycle of anxiety?
  • A. It shrinks the myelin sheaths around nerve fibers, slowing down cognitive processing.
  • B. It forces the hippocampus to generate too many new neurons at once, causing mental fatigue.
  • C. It increases cortisol levels, which enlarges the amygdala and makes you more susceptible to further stress.
  • D. It decreases the brain's reliance on glucose, leading to severe brain fog and memory loss.
Question 7 of 8
In addition to enlarging the brain's fear center, what physical damage has been linked to negative thinking?
  • A. The shortening of protective caps at the end of chromosomes called telomeres
  • B. The depletion of essential marine omega-3 fatty acids in the brain
  • C. A permanent reduction in the brain's ability to form new synapses
  • D. The calcification of the hippocampus, preventing new memory formation
Question 8 of 8
In which part of the brain does neurogenesis (the creation of new brain cells) primarily occur?
  • A. The amygdala
  • B. The hippocampus
  • C. The myelin sheath
  • D. The spinal cord

Biohack Your Brain — Full Chapter Overview

Biohack Your Brain Summary & Overview

Biohack Your Brain (2020) is a guide to caring for your most essential organ – the brain. Drawing on the latest neuroscientific research, it’s packed with actionable advice on everything from optimizing your diet for brain health to stimulating your gray cells and beating stress. Along the way, it sheds light on how you can start protecting yourself against cognitive diseases like Alzheimer’s.

Who Should Listen to Biohack Your Brain?

  • Thinkers and tinkerers
  • The stressed and anxious 
  • Self-improvers

About the Author: Kristen Willeumier

Kristen Willeumier studied neurobiology at the University of California before becoming a postdoctoral fellow in the Department of Neurology at Cedars-Sinai Medical Center in Los Angeles. A recipient of the NIH fellowship award from the National Institute of Mental Health, she is an internationally renowned expert on neurodegenerative diseases and head trauma injuries.

🎧
Listen in the AppOffline playback & background play
Get App