What is *Head Strong* by Dave Asprey about?

*Head Strong* outlines a two-week program to optimize brain performance through diet, exercise, detox protocols, and environmental adjustments. It combines neuroscience with biohacking strategies to enhance mental clarity, energy, and focus by addressing mitochondrial health, reducing inflammation, and optimizing light exposure. Key steps include eliminating "kryptonite" foods, using targeted supplements, and adjusting home/work lighting.

Who should read *Head Strong*?

This book is ideal for individuals seeking to improve cognitive function, overcome brain fog, or boost productivity through lifestyle changes. It’s particularly relevant for biohacking enthusiasts, professionals aiming for peak mental performance, and those interested in mitochondrial health or anti-aging strategies.

Is *Head Strong* worth reading?

Yes, for readers interested in actionable biohacks backed by scientific research. The book provides a structured plan with clear steps to enhance brain energy, though some dietitians critique its pseudoscientific claims. It’s praised for simplifying complex concepts like mitochondrial efficiency and inflammation’s role in cognitive decline.

What are the main concepts in *Head Strong*?

Key concepts include: - **Mitochondrial optimization**: Enhancing cellular energy production to combat brain fog. - **Anti-inflammatory protocols**: Removing foods like sugar and industrial seed oils to reduce brain inflammation. - **Light exposure management**: Using full-spectrum lighting to regulate circadian rhythms. - **Detox strategies**: Minimizing environmental toxins in homes and workplaces.

How does diet affect brain performance according to *Head Strong*?

Asprey emphasizes avoiding "kryptonite" foods (e.g., gluten, processed sugars, and industrial seed oils) that cause inflammation and mitochondrial dysfunction. He advocates for high-fat, low-carb meals to stabilize energy and recommends supplements like MCT oil and antioxidants to support cognitive function.

What foods does Dave Asprey recommend avoiding in *Head Strong*?

The book identifies gluten, processed sugars, artificial sweeteners, and industrial seed oils (like canola oil) as primary culprits for brain inflammation. Asprey also warns against excessive caffeine and histamine-rich foods, which he claims impair mitochondrial efficiency.

How does *Head Strong* address mitochondrial health?

The book positions mitochondria as the brain’s energy factories, advocating strategies to reduce free radical damage and improve efficiency. Recommendations include intermittent fasting, ketogenic diet principles, and supplements like CoQ10 and PQQ to enhance mitochondrial function.

What is the two-week program in *Head Strong*?

The program includes: 1. **Diet**: Eliminating inflammatory foods and integrating brain-boosting nutrients. 2. **Environmental tweaks**: Optimizing lighting and reducing electromagnetic field (EMF) exposure. 3. **Movement**: Incorporating short, intense workouts and mobility exercises. 4. **Supplements**: Adding nootropics and antioxidants for cognitive support.

Head Strong Summary

The Bulletproof Plan to Activate Untapped Brain Energy to Work Smarter and Think Faster-In Just Two Weeks

Dave Asprey

3.77(3328 Reviews)

Head Strong Summary Overview

Biohack your brain with Dave Asprey's revolutionary guide that promises enhanced cognitive power in just two weeks. Silicon Valley executives swear by these mitochondria-boosting techniques. What if the key to unlocking your mental potential isn't more caffeine - but the surprising science of cellular energy?

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Chapter 1

Unleashing Your Brain's Hidden Power: The Mitochondrial Revolution

What if the brain fog, fatigue, and inability to focus that plague so many of us aren't signs of weakness or character flaws, but symptoms of a fixable biological problem? Dave Asprey discovered this truth the hard way when, despite remarkable career success, he found himself struggling cognitively until a brain scan revealed his prefrontal cortex had almost no metabolic activity. "Inside your brain is total chaos," his psychiatrist told him. "I have no idea how you're standing in front of me." This revelation launched Asprey on a seventeen-year, million-dollar quest to hack his brain performance, culminating in Head Strong-a program that's gained celebrity followers like Novak Djokovic and transformed thousands of lives by targeting the true source of brain power: your mitochondria. Unlike traditional brain health approaches focused on preventing decline, Asprey's method creates a high-performing brain that works better immediately and lasts longer than nature intended-a revolutionary approach to unlocking your hidden cognitive potential.

Chapter 2

The Mighty Mitochondria: Your Brain's Power Plants

Your brain functions like a smartphone-initially fast and responsive, but gradually slowing as it accumulates toxins and digital clutter. Despite being only 2% of your body weight, your brain consumes a staggering 20% of your energy, with the prefrontal cortex containing the highest concentration of mitochondria in your body (except for ovaries). These tiny cellular power plants, descendants of ancient bacteria that merged with our cells 1.5 billion years ago, produce adenosine triphosphate (ATP)-the universal energy currency that powers every cellular function. When your mitochondria function poorly, you experience what Asprey calls "mitochondrial brownouts"-energy shortages that manifest as brain fog, inability to focus, memory lapses, mood swings, and uncontrollable food cravings. Most people accept these symptoms as normal aging or blame themselves for lacking willpower, but they're actually signs of mitochondrial dysfunction that can be reversed. The average person's mitochondrial efficiency drops by 50% between ages 30 and 70, but this decline isn't inevitable. About 46% of people under forty suffer from early-onset mitochondrial dysfunction (EOMD) without realizing it. When mitochondria malfunction, they create several vicious cycles: inefficient coupling (where energy production creates harmful free radicals), reduced recycling of ATP components, excess free radical production that damages surrounding cells, and poor methylation (a critical biochemical process occurring billions of times per second that affects everything from hormones to detoxification). What's remarkable is that these energy-producing organelles don't just power your thoughts-they literally shape who you are moment by moment. Your ability to resist impulses, make good decisions, maintain focus, and even your emotional state all depend directly on how efficiently your mitochondria produce energy. When your brain lacks energy, it's not a moral failing-it's a hardware issue that can be fixed.

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Chapter 3

Your Neurons: The Brain's Energy-Hungry Network

Neurons are cellular marvels that consume up to 4.7 billion ATP molecules per second. Their unique structure-with branches extending up to three feet from a single cell-requires incredible energy management. About 30% of neuronal mitochondria constantly move throughout the cell to meet fluctuating energy demands, like a mobile power supply rushing to where it's needed most. These specialized cells communicate through dendrites ("ears") that receive information and axons ("voice") that send it, with synapses bridging the gaps between cells. This electrical and chemical signaling system forms neural networks enabling learning, memory, and focus. The quality of these connections depends heavily on myelin-a fatty insulation that speeds neural communication. Proper myelin production requires adequate dietary fats, particularly cholesterol. Despite its demonization, cholesterol is crucial for brain function-the brain contains 25% of the body's cholesterol despite being only 2% of body weight. Studies show cholesterol deficiency leads to cognitive decline, while high-fat diets improve memory and cognition. Dr. Terry Wahls' remarkable recovery from multiple sclerosis through a nutrient-rich, high-fat diet demonstrates myelin's regenerative potential. Perhaps most exciting is the discovery that neurogenesis-the creation of new brain cells-continues throughout life, not just until our twenties as once believed. According to Dr. Brant Cortright, we can increase neurogenesis by at least five times through lifestyle changes. New neurons form primarily in the hippocampi when neural stem cells divide, creating either more stem cells or specialized cells. These new neurons need 4-6 weeks to mature and integrate into neural networks. Several factors influence neurogenesis: environmental toxins severely inhibit it; diet is crucial (sugar and oxidized fats decrease it while omega-3s enhance it); bioflavonoids and polyphenols help new neurons survive; chronic stress reduces neurogenesis while exercise increases it; and enriched, stimulating environments boost neuron production and survival. Even sexual activity increases neurogenesis while buffering against stress hormones-though men should avoid daily ejaculation to preserve hormones and mitochondrial function.

Chapter 4

The Inflammation Connection: Your Brain's Silent Enemy

Inflammation plays a crucial role in mitochondrial performance and brain function. While acute inflammation is necessary for healing injuries, chronic inflammation throughout the body directly impacts brain performance. The brain is particularly sensitive to inflammation anywhere in the body, as inflammatory chemicals called cytokines cross the blood-brain barrier and negatively affect neural function. This "muffin top in your brain" mirrors physical inflammation and is at the core of age-related neurodegenerative diseases like Alzheimer's. Even "normal" aging symptoms are actually manifestations of inflammation lowering mitochondrial function. Studies show inflammation hurts brain performance at any age, specifically impairing learning, memory, and attention. The gut-brain connection is profound, with roughly 50 percent of our immune system clustered around the digestive tract. This system translates the twenty tons of foreign molecules we consume throughout our lives, determining which are friends or foes. When immune cells detect enemies, they trigger inflammation that manifests as bloating or brain fog. Our gut bacteria play a crucial role in this process, helping maintain the blood-brain barrier through butyrate production. Traumatized gut bacteria from antibiotics, pesticides, and processed foods threaten our immune balance, increasing chronic inflammation. Studies show obese people have different gut bacteria than lean people, with an excess of firmicutes bacteria correlating with inflammation. Hormone function and inflammation exist in a two-way relationship that can become a vicious cycle. Certain hormones protect against inflammation-testosterone is anti-inflammatory, while estrogen can be either pro or anti-inflammatory depending on circumstances. Progesterone, present in both male and female brains, helps prevent neuron loss and regulates inflammation. Our diet dramatically influences inflammation levels. The standard American diet contains excessive omega-6s from vegetable oils found in nearly all packaged foods and restaurant meals. Our consumption of these pro-inflammatory fats has dramatically increased over the last fifty years, paralleling the rise in cognitive dysfunction and inflammation-based diseases. Added sugar consumption compounds this problem by triggering inflammatory cytokines and creating toxic advanced glycation end products (AGEs) that damage collagen and create oxidative stress, further harming mitochondria in a vicious cycle of inflammation and dysfunction. When inflammation is reduced, mental fog clears, allowing for clearer thinking, better focus, and improved memory-often within days of making dietary changes.

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Chapter 5

Brain Fuel: Feeding Your Mitochondria for Maximum Performance

Diet offers the most powerful way to control brain performance. The food we consume impacts brain function more than any other controllable factor, serving as literal fuel that either helps the brain run efficiently or causes breakdown. Our bodies extract electrons from food and combine them with water and oxygen to produce energy, functioning essentially like a battery that needs the right materials to stay powered. Polyphenols-antioxidants found in dark red, purple, and blue parts of plants-protect against oxidative damage while offering specific benefits for mitochondria. They protect gut health by improving bacterial balance, increase neurogenesis by boosting BDNF and NGF levels, regulate cell death processes, and fight inflammation. Since polyphenols aren't easily absorbed, consuming them with fat dramatically improves their bioavailability-that's why butter on vegetables makes them more nutritious. Our brains are primarily composed of fat, making healthy fats the most crucial macronutrient for brain function. Studies show DHA supplements improve memory and learning in older adults, with higher DHA intake inversely correlated with Alzheimer's risk. The best sources of brain-nourishing fats include grass-fed animal fats (which contain more omega-3s and CLA than grain-fed), grass-fed beef tallow, pastured egg yolks, olive oil, and wild-caught low-mercury seafood. Ketosis provides superior brain fuel, but continuous ketosis can have downsides. Using medium-chain triglycerides (MCTs) offers a solution-they're water-soluble fats that go directly to the liver, which metabolizes them immediately and depletes glycogen stores, triggering ketosis even with some carbs present. Even mild ketosis (0.5 millimolar blood concentration) shifts hunger hormones, improves focus, and eliminates cravings without requiring extreme carb restriction. Fasting offers benefits beyond ketosis, improving brain myelination, reducing inflammation, and activating autophagy-your cellular detox system that eliminates waste for a deep brain cleaning. However, fasting has drawbacks like triggering primitive emotions when your brain perceives starvation. Bulletproof Coffee (combining toxin-free coffee, grass-fed butter and Brain Octane Oil) provides fasting benefits without the energy crashes, delivering polyphenols, anti-inflammatory butyrate, and mild ketosis in a combination that powers sustained focus and energy. Proper neurotransmitter production requires specific dietary precursors. Dopamine, the "motivation molecule," is made from amino acids L-tyrosine and L-phenylalanine found in animal proteins. Serotonin impacts mood and sleep quality, with L-tryptophan as its precursor. Acetylcholine, essential for memory and preventing Alzheimer's, requires choline from egg yolks, while GABA, which calms the brain, needs L-glutamine from protein-rich foods.

Chapter 6

Brain-Inhibiting Foods: What's Draining Your Mental Energy

Just as certain foods can supercharge your brain, others can actively damage it. Many common foods harm neurons, reduce mitochondrial efficiency, slow energy production, fuel inflammation, and cause cognitive symptoms like irritability, distraction, forgetfulness and brain fog-often without you connecting these symptoms to what you've eaten. Inflammatory foods damage brain performance by irritating the gut lining and triggering immune attacks on healthy cells. The most harmful include trans fats, which alter mitochondrial composition; dairy products, whose casein protein has a structure similar to gluten and can break down into casomorphin (binding to brain opiate receptors and causing sedation); and gluten, which affects millions through celiac disease or sensitivity. Toxins in food come from two sources: manufacturer-added substances like preservatives and pesticides, and naturally occurring toxins that plants, bacteria, and fungi produce for self-defense. Both types damage mitochondria, cause inflammation, and diminish mental performance. Mold toxins (mycotoxins) are particularly harmful to brain function, directly attacking mitochondria. Many people experience brain fog, fatigue, and reduced cognitive performance from even small mold exposures without realizing the cause. Coffee is particularly susceptible to mold contamination, with studies showing more than 90% of green coffee beans are contaminated before processing and nearly 50% of brewed coffees contain mold. While many countries including the EU have set strict limits for ochratoxin A in coffee, the United States has no standards whatsoever. This regulatory gap has created a disturbing practice-coffee rejected by other countries for mold contamination gets redirected to the US market. Artificial additives like MSG may have the most significant impact on cognitive performance among food additives. Its glutamate component is an excitatory neurotransmitter that causes neurons to fire excessively, leading to excitotoxicity where neurons deplete their mitochondrial energy, generate free radicals, and eventually die. Aspartame contains phenylalanine that converts to free methanol in the body, which the liver transforms into formaldehyde-a known mitochondrial poison. Sugar functions as a neurotoxin at common consumption levels and is implicated in most degenerative illnesses, particularly Alzheimer's (often called "type 3 diabetes"). Since 1927, scientists have known that elevated glucose lowers mitochondrial function-the Crabtree effect. Sugar creates insulin resistance, which floods the brain with excess insulin and disrupts neuronal communication. Studies show insulin-resistant people score lower on memory tests, while rats fed high-sugar diets for just six weeks show decreased synaptic activity and cognitive decline. Even carefully selected foods can become mitochondrial inhibitors through improper cooking. High-heat cooking creates carcinogens that damage mitochondria, while damaged fats create less flexible cell membranes throughout the brain and body, disrupting neuron signaling and hormone function.

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Chapter 7

Environmental Factors: Light, Air, and Cold for Brain Optimization

Biohacking means changing your environment to control your body and brain. Light is a critical environmental factor that signals mitochondria what to do and when. Different light frequencies send different messages-light isn't just a nutrient but also a drug we've used in medicine for a century. We've accidentally created "junk light" just like we created junk food-by modifying natural sources into something our biology can't properly process. Blue light from LED and fluorescent lighting creates excessive stress on mitochondria, producing free radicals in eye cells without triggering the natural antioxidant cleanup response. This damages mitochondria, reduces energy production, and is linked to macular degeneration. Junk light disrupts our circadian rhythm through blue light exposure, which activates special light sensors in our eyes at 480 nanometers. This slows mitochondrial energy production, increases inflammation, and prevents quality sleep. Without sufficient natural daylight, we don't produce enough serotonin to convert into melatonin, leading to poor sleep quality and increased cancer risk. Your mitochondria evolved to experience red light all day, with less blue at dawn and dusk. Dr. Gerald Pollack discovered that infrared light transforms water in our bodies into biologically useful "EZ water" that supports mitochondrial function. Since our bodies are 70% water, light exposure dramatically affects our energy levels. Oxygen is critical for mitochondrial energy production, yet our atmosphere contains less oxygen than it did centuries ago. Ironically, restricting oxygen intake temporarily can improve oxygen efficiency and increase BDNF production for better brain function. Intermittent hypoxic training-alternating between breathing low-oxygen air and normal air-can create similar benefits, eliminating weak mitochondria while strengthening others. Cold thermogenesis uses cold temperatures to generate heat in your body, a practice dating back to ancient Romans and Norse cultures. When exposed to cold, your body burns fat, releases muscle-glycogen-burning proteins, and increases testosterone and growth hormone production. These changes reduce inflammation, improve insulin sensitivity, and trigger autophagy of damaged cells. Cold therapy enhances thyroid and mitochondrial function, stimulates norepinephrine release for pain relief, and increases antioxidant production, particularly glutathione.

Chapter 8

The Head Strong Lifestyle: Sleep, Exercise, and Meditation

Sleep isn't just rest-it's when your brain performs crucial maintenance. During sleep, your glymphatic system flushes out cellular waste and neurotoxins using cerebral spinal fluid. Your brain cells shrink by up to 60% during sleep to facilitate this cleaning process before returning to normal size. This maintenance requires significant energy from your mitochondria, creating a reciprocal relationship: efficient mitochondria improve sleep quality, which in turn enhances mitochondrial function. Quality sleep also increases growth hormone production (stimulating neurogenesis and mitochondrial growth), strengthens connections between brain cells, improves memory, and regulates blood sugar. Poor sleep causes a 40% decrease in blood sugar regulation, leading to insulin resistance and inflammation that further impairs mitochondrial function. Meditation isn't just a woo-woo trend but a scientifically proven brain-enhancer embraced by Silicon Valley executives. Like strength training for your brain, regular meditation creates more folds in your brain's outer layer (correlating with intelligence), thickens areas associated with complex thought and problem-solving, and reduces stress hormones like cortisol and adrenaline. A 2013 Harvard study found just 20 minutes of meditation improved mitochondrial energy production and resilience. While psychological stress reduction is crucial for sleep and performance, cellular stress through exercise actually strengthens your mitochondria. Exercise promotes mitophagy (killing weak mitochondria), neurogenesis (growing new neurons), and mitogenesis (growing new mitochondria). High-intensity interval training stimulates PGC-1 alpha, a protein regulating metabolism and mitochondrial growth. Exercise also releases FNDC5, which increases brain-derived neurotrophic factor (BDNF)-what Harvard's Dr. Ratey calls "Miracle-Gro for the brain." You don't need expensive gym memberships to benefit from exercise-simply moving regularly is crucial. Walking, yoga, hiking, and playing with kids all stimulate neurogenesis, with daily movement proving more beneficial than occasional intense exercise. Walking for forty minutes three times weekly has been shown to increase hippocampal size. Yoga particularly enhances working memory and focus-even outperforming aerobic exercise in cognitive tests. HIIT combines the benefits of resistance and endurance training through alternating intense exercise bursts with brief active rest periods. This efficient approach delivers remarkable results in minimal time by stressing muscles and the cardiovascular system intensely, then allowing recovery while maintaining elevated heart rate. Studies show HIIT is up to ten times more effective at increasing growth hormone than either resistance or endurance training alone. Exercise profoundly impacts cellular water beyond simple hydration. Physical movement creates EZ water by shaking water molecules, benefiting mitochondria and all cell membranes. When tiny fat droplets in membranes flex and shake during exercise, they generate piezoelectric charges that create EZ water, helping cells function efficiently.

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Chapter 9

Advanced Brain Enhancement: Beyond the Basics

For those wanting to push performance even further, advanced techniques can enhance mitochondrial function beyond the foundational Head Strong program. These range from simple to sophisticated interventions, all targeting different aspects of brain optimization. Since mitochondria are semi-conductive and affected by magnetic fields, pulsed magnetic fields can profoundly impact sleep and brain function. Transcranial magnetic stimulation effectively treats insomnia by stimulating the brain's production of serotonin, melatonin, and other sleep-related neurotransmitters. The treatment involves holding an electromagnetic coil against your forehead while pulses stimulate nerve cells in targeted brain regions. Running electrical current across your body adds electrons to your system, allowing faster energy production by directly affecting the electron transport chain. Cranial electrotherapy stimulation (CES) runs current back and forth across your brain to synchronize brain states while supercharging mitochondria. Originally developed by the Russian space program to help astronauts perform better with less sleep, CES has evolved into more precise technologies that shape electrical waves with computer precision to stimulate neuron growth. Ozone therapy, developed in 1950s Germany, has become popular for performance enhancement and injury recovery. While regular oxygen has two atoms, ozone has three, creating a supercharged molecule with powerful healing properties. Ozone regulates the immune system, treats autoimmune diseases, and stimulates cells to absorb more oxygen. Most importantly, it's a mitochondrial stimulant that protects against oxidative stress while changing the NAD+/NADH ratio similar to strong mitochondrial supplements. Whole-body cryotherapy exposes you to super-chilled air at -270F for up to three minutes, providing a powerful mitochondrial recharge. Unlike cold water immersion that chills to the bone, cryotherapy only chills your outer skin, making it more comfortable despite the extreme temperature. A positive side effect is increased collagen synthesis, resulting in fewer wrinkles and better skin healing. When mitochondria finish using electrons, these "used" electrons typically attach to oxygen molecules, but they can also flow to any electrical ground, including the earth. This explains why walking barefoot on grass or beach feels energizing-earthing yourself reduces inflammation, improves sleep, and fixes jet lag. You can achieve these benefits by walking barefoot outside daily or using conductive mats for your desk and conductive sheets for your bed that plug into the grounding part of electrical outlets. Beyond conventional supplements, specific mitochondrial stimulants like methylene blue can dramatically improve performance. Originally used as a diagnostic dye, methylene blue increases oxygen flow to the brain and improves mitochondrial efficiency by carrying more electrons into the electron transport chain. It crosses the blood-brain barrier and acts as an antioxidant. Studies show it can increase cell lifespan, delay dementia effects after diagnosis, and improve cognition and memory in both rats and humans.

Chapter 10

The Power of Mitochondrial Control: Your Brain's Future

After years as a professional biohacker-spending hundreds of thousands of dollars and traveling worldwide seeking cutting-edge performance hacks-Asprey discovered everything ultimately comes down to our mitochondria. These tiny bacterial descendants, which exist in nearly every cell of our body, control our energy production, brain function, and essentially determine who we are. Originally independent organisms that formed a symbiotic relationship with our cells billions of years ago, mitochondria now serve as our cellular powerhouses, converting nutrients into ATP, the energy currency of life. What's exciting is that while mitochondria control us, we can take control over them by changing our environment, diet, and lifestyle choices. Using the techniques in Head Strong, you can actively influence how much energy you want, how you feel, and how you treat others. Every time you turn on a light, eat a meal, or engage in physical activity, you're making decisions that directly impact your mitochondrial function. Even seemingly minor choices, like the timing of your meals, the temperature of your shower, or the brightness of your computer screen, can significantly affect mitochondrial performance. Once you experience the profound difference of controlling your mitochondria instead of being controlled by them, it becomes impossible to return to old habits. The comprehensive two-week Head Strong program teaches specific strategies to optimize mitochondrial function. This includes detailed guidance on selecting foods that serve as premium mitochondrial fuel, such as healthy fats and specific proteins, while eliminating inflammatory foods that damage mitochondria. The program also covers systematic detoxification from environmental toxins, precise protocols for optimizing light exposure throughout the day, advanced breathing techniques, targeted workout routines, and sleep optimization strategies-all carefully designed to work synergistically for maximum benefit in minimal time. By making informed choices about the thousands of daily actions affecting your brain energy, from morning sunlight exposure to evening blue light protection, you'll experience profound changes in cognitive function, energy levels, and overall performance. This program extends far beyond physical improvements to encompass emotional and spiritual transformation. With optimized mitochondria, participants consistently report becoming more patient in challenging situations, demonstrating greater kindness in daily interactions, developing deeper empathy in relationships, and maintaining stronger presence with loved ones. These improvements stem from having more consistent energy and better emotional regulation, all because controlling your mitochondria has made self-improvement more accessible and sustainable. The ultimate result isn't just enhanced cognitive performance or increased productivity, but a fundamentally better quality of life. This enables individuals to contribute more meaningfully to their personal goals, professional aspirations, and the well-being of others around them. The ripple effects of optimized mitochondrial function extend far beyond individual benefits to positively impact families, workplaces, and communities.

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Key Themes in the Head Strong Summary

mitochondrial function
brain biohacking
neurogenesis enhancement
cognitive energy production
myelin regeneration

Best Quotes from the Head Strong Summary

Inside your brain is total chaos.
The average person's mitochondrial efficiency drops by 50% between ages 30 and 70, but this decline isn't inevitable.
Your ability to resist impulses...even your emotional state all depend directly on how efficiently your mitochondria produce energy.
Unlike traditional brain health approaches focused on preventing decline, Asprey's method creates a high-performing brain.

Characters in the Head Strong Summary

Dave AspreyAuthor and biohacker who researched brain health
Novak DjokovicCelebrity follower of the Head Strong program
Dr. Terry WahlsDoctor who used diet to recover from MS
Dr. Brant CortrightExpert on neurogenesis and brain cell growth

About the Author

Dave Asprey, author of Head Strong: The Bulletproof Plan to Activate Untapped Brain Energy to Work Smarter and Think Faster—in Just Two Weeks, is a bestselling author, biohacking pioneer, and founder of the Bulletproof lifestyle brand.

A Silicon Valley entrepreneur turned health innovator, Asprey blends his tech-industry background—including leadership roles at Citrix and Trend Micro—with over two decades of biohacking research to optimize human performance. His work focuses on leveraging neuroscience, mitochondrial biology, and unconventional strategies to enhance cognitive function, a theme central to Head Strong.

Asprey’s previous books, including The Bulletproof Diet and Game Changers, along with his top-rated Bulletproof Radio podcast (75+ million downloads), have established him as a leading voice in peak-performance science. Featured on The Tonight Show and in Men’s Health, he revolutionized morning routines globally through Bulletproof Coffee, with over 150 million cups consumed since 2009.

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BeFreed has become my daily app for audio books tools... What I like the most is the way you put your text and come with an audio that you can listen on the go.

@kotanzu1

I love the fact that I can get useful, condensed, information and ideas in a 8 - 15 minute podcast style audio. I'm not a general fan of podcasts because of all the fluff, but this cuts through all that.

@BeFreed user

I am finishing up my doctorate, and have to read a lot of unfamiliar material... With BeFreed, you simply enter a prompt, and the app finds source material for you and generates an audio podcast. I find the process in BeFreed to be more streamlined than NotebookLM.

@Brad

I often search YouTube for something to listen to whilst making breakfast, when I'm out walking, commuting, etc, and BeFreed has provided an even more targeted approach, without the adverts and the fluff!

@BeFreed user

The absolute best part about this platform is its versatility. There is literally no subject that is off-topic. It handles whatever you throw at it... It is rare to find an learning tool with zero limitations that actually delivers on its promises.

@jayallen

BeFreed is fantastic. The user-friendly design means I spend less time navigating and more time learning. The mix of audiobooks, podcasts, and learning plans is a genius combo that has completely changed my daily routine.

@BeFreed user

At the start I needed a while to understand how to create podcasts in italian language and boom! It is so great! I can ask to explain every argument and it does so well and so smartly!

@matteo77

BeFreed has become my daily app for audio books tools... What I like the most is the way you put your text and come with an audio that you can listen on the go.

@kotanzu1

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