The 10 Protocols to OptimizeBrain and Body Daily

Most people wake up and immediately believe cortisol is their enemy. They've been told to keep it low, to avoid spikes, to treat the stress hormone as something to suppress. This assumption, rooted in decades of health messaging, misses something fundamental about how the human body actually works. High cortisol in the morning is not a pathology—it's a requirement. The moment you understand this distinction, a cascade of optimizations becomes possible. This is where the protocols begin.

Andrew Huberman, a Stanford neuroscientist and host of the world's leading health podcast, has spent years mapping the neurobiology of performance, sleep, stress, and learning. His recently published book Protocols: An Operating Manual for the Human Body distills research across seven domains—sleep, exercise, stress control, nutrition, light, focus, and personal growth—into fifty distinct protocols. But when asked which ten matter most, Huberman identified a core set that he practices every single day. These are not expensive biohacks or pharmaceutical interventions. They're behavioral and environmental protocols that cost nothing or fit within an existing budget. More importantly, they don't work in isolation. They're gears in a machine. Adjust one, and the others turn with it.

Why Morning Cortisol Matters More Than You Think

The first protocol begins before you even realize you need it. The moment you wake—or more precisely, the minute before your alarm sounds—your cortisol levels surge. This is the cortisol awakening response, and it's so reliable that Huberman notes most people can sense it, often waking a minute or two before their alarm. The reason we wake is biochemical: cortisol rises steeply in the first sixty minutes of the day, and this spike is essential.

"You want this peak in cortisol as high as possible in the first 60 minutes of your day," Huberman explains. The conventional health narrative inverts this. "Everyone thinks you want low cortisol, but here's the deal. High cortisol in the early part of your day is what provides for elevated mood, focus, attention, your ability to learn." More than that, the morning cortisol peak establishes what happens hours later. "It's also what establishes low cortisol in the afternoon and at night which is a requirement for falling and staying asleep."

This relationship—the high morning cortisol creating the conditions for low nighttime cortisol—is foundational. If your morning cortisol curve is flat or low, something shifts in your nervous system. Stress responses throughout the day don't resolve cleanly. A stressful text or unexpected task sends cortisol spiking higher and stays elevated longer because it's building on a baseline that never dropped low enough. Over time, this flattened curve correlates with shorter lifespan, reduced recovery from illness, and fragmented sleep. Women in particular have been given misleading advice to avoid morning cortisol spikes, but doing so paradoxically creates the metabolic conditions they're trying to avoid.

Morning Sunlight: The Reset Button for Your Circadian Rhythm

The second protocol is direct and immediate: get sunlight exposure early in the day. This isn't about vitamin D alone—it's about resetting your circadian rhythm and synchronizing your cortisol curve to the day-night cycle. Sunlight in the morning, viewed through the eyes (not through windows, and definitely not through sunglasses), signals your brain that the day has begun. This entrains your cortisol rhythm so it peaks when it should and falls when it should.

Sunlight also has a direct physiological effect. "Exposure each day to the skin increases testosterone and estrogen in both women and men, and is important for libido," Huberman notes. This isn't metaphorical. Photons hitting the skin trigger measurable hormonal cascades. Beyond hormones, morning light exposure affects metabolism itself. The wavelengths of natural sunlight—particularly the shorter blue wavelengths at sunrise and the longer red wavelengths at sunset—trigger specific photoreceptors in the eye and skin. These receptors communicate with the suprachiasmatic nucleus, the brain's master clock. Misalign this clock, and everything downstream suffers: metabolism, immune function, hormone production, sleep architecture.

Evening light exposure, by contrast, becomes dangerous. "After 6 p.m. on devices getting artificial LED exposure," Huberman notes, studies show people live shorter lives, with elevated cancer rates and metabolic dysfunction. The problem compounds across generations. Young people, raised with screens as a primary source of evening light, are metabolically sick at ages where they should be metabolically robust. This is not a small problem in the health picture; it's foundational.

Hydration and the Nervous System

The third protocol is simple but often overlooked: proper hydration. A dehydrated nervous system is an agitated nervous system. Even mild dehydration affects cognitive performance and emotional regulation. This isn't just about drinking water—it's about understanding that your nervous system operates within a fluid medium, and that medium matters.

Exercise: The Cortisol Pump

The fourth protocol is resistance training for forty-five minutes, taking sets close to failure. This is where the myth of "don't spike cortisol" becomes actively harmful. "It will triple or quadruple your cortisol levels," Huberman says. "But a lot of people have been told, don't spike your cortisol. It's the stress hormone, but it's a preparation hormone. You're preparing for adversity, but also great things."

The body's ability to spike cortisol in response to a challenge, then bring it back down, is not a pathology—it's a skill. This is called allostasis: the capacity to adapt to stress and recover. When you lift weights and create metabolic stress by taking sets near failure, you're training your nervous system to handle stress. You're literally building cortisol resilience. This spill-over effect matters throughout the day. The next time you face a genuine stressor—a difficult conversation, a deadline, unexpected news—your nervous system has been primed to spike, then recover. You've practiced it in the gym.

The Eye Movement Trick for Sleep

One of the most immediately practical protocols Huberman shares is an eye movement technique to fall asleep or return to sleep when you wake in the night. This is called the "compensatory eye movement" protocol, and it works by engaging a specific neural pathway. When your eyes move slowly downward and inward in a way that mimics the natural eye movements of sleep onset, you signal your brainstem that it's time to transition into sleep. "If you do it for 5 minutes per day, you will experience a significant improvement in mental and physical health," Huberman states. This is not meditation or visualization—it's a mechanical trigger for the nervous system.

Sleep Position and Long-Term Brain Health

The fifth protocol addresses something most people never think about: sleeping on your side. "Sleeping on your side is very important for offsetting dementia, getting rid of bags under your eyes." The reason is glymphatic function—the brain's waste-clearance system operates more efficiently when you lie on your side, allowing cerebrospinal fluid to flow through the brain and remove accumulated proteins associated with neurodegeneration. This is not marginal. Side sleeping correlates with better cognitive outcomes in aging. It's also why you see fewer bags under your eyes—fluid doesn't pool the same way.

Stress Reduction Through Breathing

The sixth protocol is a breathing technique to reduce stress rapidly. A double inhale followed by a long exhale activates the parasympathetic nervous system—the brake pedal of your nervous system. This isn't breathing meditation. It's a specific neurobiological hack. The exhalation phase lengthened past the inhale triggers the vagus nerve to signal safety to your brain. Heart rate variability increases. Your nervous system shifts from sympathetic (fight-or-flight) dominance to parasympathetic (rest-and-digest) dominance. This works within minutes and requires no equipment, no app, no cost.

Nutrition and Blood Sugar

The seventh protocol involves strategic eating to manage blood sugar and stress. Starches early in the day don't create metabolic chaos as popular low-carb dogma suggests. In fact, starchy foods can calm stress because they facilitate the entry of tryptophan into the brain, increasing serotonin production. The timing and composition matter. "Eggs, lean meat, fish" paired with healthy fats provide stable energy and neurotransmitter precursors. The simple trick for lowering blood sugar spikes after eating is to move—even a short walk—before and especially after meals. Glucose disposal improves with muscle contraction, and you don't need to run a marathon. A few minutes of movement shifts your blood sugar trajectory.

Building Willpower Through Discomfort

The eighth protocol is what Huberman calls "the comfort crisis." Willpower and tenacity are not fixed traits—they're muscles that strengthen with use. Deliberately doing hard things, even small ones, trains your nervous system to tolerate discomfort. This might mean an ice bath (which does spike cortisol acutely, but the adaptation strengthens your stress response), a cold shower, or simply choosing the harder option in a situation where you have a choice. Over time, this rewires your anterior midcingulate cortex—the brain region associated with the capacity to engage in effortful work. Real willpower comes from practicing it daily, not from motivation or discipline alone.

Creating the Sleep Environment

The ninth protocol is environmental design for sleep. A dark, cool room (around 65-68 degrees Fahrenheit) is non-negotiable. Darkness allows melatonin production. Cool temperature facilitates the circadian drop in core body temperature that enables sleep onset. Some people find earplugs helpful. The design principle here is simple: remove anything that signals wakefulness to your nervous system. Light, heat, and sound are sensory inputs that keep your brain alert. Remove them, and sleep comes more easily.

Heart Rate Variability and Nervous System Tone

Heart rate variability—the variation in time between heartbeats—is a marker of nervous system flexibility. High HRV correlates with better health outcomes, better stress recovery, better emotional regulation. You increase HRV not through supplements but through the protocols already mentioned: morning light, exercise, breathing work, sleep quality. These are the levers. Everything else is supplementary.

Peptides, Psychedelics, and the Limits of Pharmacology

Huberman is clear about the role of pharmacological interventions. Peptides designed to enhance REM sleep, psychedelics for neuroplasticity, even MDMA in clinical settings—these tools have a place. But they're downstream of the fundamentals. "While there is a place for pharmacology and supplements and things that you take, ultimately these gears fit together based on what you do." The protocols come first. Optimized sleep, stress, light, movement, and nutrition are the foundation. Anything chemical is built on top of that foundation. Most people invert this priority, seeking pharmacological solutions while ignoring the behavioral protocols that cost nothing and work reliably.

Why These Protocols Synergize

This is the key insight: these ten protocols don't work independently. They reinforce each other. How well you slept last night determines your cortisol curve today, which determines your stress resilience, which affects your exercise performance, which affects your sleep quality tomorrow. Missing one creates a cascading effect through the others. Optimizing one amplifies the effects of the others. This is why Huberman does all ten every day. Not because each one independently transforms your life, but because together they create a compounding effect that is genuinely transformative. He describes experiencing what he calls "miracles"—unexpected improvements in mood, energy, relationships, and clarity—once the protocols became non-negotiable daily practice.

The protocols are also agnostic to your starting point. Whether you're optimizing from a baseline of illness, stress, or simply mediocre health, the protocols move the needle. They work because they're aligned with the neurobiology of the human nervous system. They're not fighting biology. They're working with it.

Where to go from here

Start with one protocol. Morning sunlight is often the easiest entry point—ten to thirty minutes of natural light in your eyes within the first two hours of waking. Add morning cortisol awareness: understand that the peak is not your enemy; it's your ally. From there, add the evening practices: the eye movement technique for sleep, dark and cool sleep environment, the breathing work for stress. The protocols are meant to be stacked over time, not adopted all at once. The book Protocols: An Operating Manual for the Human Body provides detailed protocols across all seven domains, with specific timing, dosages, and troubleshooting for each. The underlying principle is simple: your nervous system is plastic. It responds to what you do. These ten protocols are the lever points. Use them deliberately, and your biology will follow.