The Complete Guide to Cognitive Performance for Executives

How do you maintain clear judgment, sharp focus, and working memory when running on fragmented sleep and continuous operational demands?

If you have searched for ways to stop afternoon mental fatigue, recover your concentration, or eliminate brain fog during high-stakes presentations, you have likely encountered generic productivity advice. Most mainstream guidance assumes a predictable schedule, eight uninterrupted hours of rest, and minimal daily emergencies. That advice fails in executive environments.

This guide delivers a definitive, evidence-informed framework for executive cognitive performance. It treats mental clarity not as a personal character test, but as an operational system across physiology, workload structure, environmental friction, and decision architecture.

Key Takeaways

• Cognitive performance relies on three core executive functions: working memory, inhibitory control, and cognitive flexibility.
• Sustained mental stamina is a function of physiological capacity, environmental control, organizational coordination, and systematic recovery.
• Research from the American Academy of Sleep Medicine demonstrates that vigilance, processing speed, and working memory degrade significantly when sleep drops below seven hours per night.
• Multitasking is a neurological impossibility for complex tasks; it represents rapid task switching that introduces measurable switching costs and attention residue.
• Physical exercise provides measurable cognitive protection, with aerobic training benefiting global processing and resistance training improving executive function.
• The highest returns come from structural changes: externalizing working memory, establishing communication windows, matching task complexity to circadian alertness, and using structured decision records.

Foundations of Executive Cognitive Architecture

Executive cognitive performance is not a single trait. You cannot improve it by simply trying harder. It is the real-time interaction of multiple neurocognitive processes operating under physiological constraints and environmental friction.

In cognitive psychology, higher-order processing is governed by executive functions. These processes allow you to pursue long-term objectives, evaluate conflicting data, suppress emotional reactions, and adapt when facts change.

• Executive Performance Stack
• Working Memory (maintaining and manipulating live data)
• Inhibitory Control (suppressing impulses and distractions)
• Cognitive Flexibility (shifting strategies and reframing problems)
• Selective Attention (filtering noise from signal)

Working Memory

Working memory is the temporary maintenance and manipulation of information during active tasks. In an executive setting, working memory is taxed continuously. You rely on it when comparing competing financial models, holding contract constraints in mind during a negotiation, or tracking dependencies across business units.

Working memory has a strictly limited capacity. It is exceptionally vulnerable to acute sleep restriction, emotional stress, and conversational interruptions. When working memory is overloaded, executives miss contradictions in reports, lose track of negotiation parameters, and default to cognitive shortcuts.

Inhibitory Control

Inhibitory control is the ability to suppress an automatic, impulsive, or emotionally reactive response in favor of a deliberate, goal-directed action. In leadership, inhibitory control is the difference between reacting to a hostile email immediately and pausing to consider the strategic objective.

Inhibitory control allows you to stay focused on a complex document instead of checking real-time revenue dashboards. It prevents premature closure during problem-solving. It also enables you to prevent a vocal minority from hijacking an executive committee meeting. When physiological resources are depleted, inhibitory control is among the first executive capacities to degrade.

Cognitive Flexibility

Cognitive flexibility enables you to switch perspectives, adjust models, and change strategies when conditions shift. It helps you recognize when an operational playbook that worked last quarter no longer fits the current market. It allows you to move smoothly between broad strategic vision and detailed operational realities.

Cognitive flexibility must not be confused with constant task switching. Deliberate flexibility is the conscious decision to update a mental model based on new evidence. Uncontrolled switching is merely fractured attention.

Attention Mechanics and Cognitive Load

Attention is the selective allocation of limited cognitive capacity. Cognitive science distinguishes between several attentional modes:

• Sustained attention: The ability to maintain focus on a single stream of information over extended periods.
• Selective attention: The ability to filter out irrelevant environmental or internal noise.
• Divided attention: The attempt to process multiple complex informational inputs at the same time, which inevitably degrades processing depth.
• Alternating attention: The capacity to move between tasks requiring different cognitive sets without losing operational context.

These attentional mechanisms operate within the framework of Cognitive Load Theory. Cognitive load is divided into three distinct categories:

• Intrinsic load: The inherent, unavoidable complexity of the problem itself, such as evaluating an acquisition target.
• Extraneous load: The unnecessary mental effort caused by poor communication, disorganized slide decks, ambiguous ownership, and constant notifications.
• Germane load: The productive mental effort dedicated to integrating information, building mental models, and refining decision criteria.

You cannot always reduce intrinsic load in high-responsibility roles. However, you can aggressively eliminate extraneous load. Reducing unnecessary friction frees up cognitive bandwidth for high-value strategic reasoning. Developing strong focus and cognition systems requires managing these distinct forms of cognitive load systematically.

The Core Scientific Consensus on Mental Capacity

Sustainable cognitive output requires an understanding of human neurobiology. The brain is an energy-demanding metabolic organ. When baseline physiological inputs are compromised, cognitive output drops regardless of an individual's motivation.

Sleep Duration and Cognitive Degradation

The consensus from the American Academy of Sleep Medicine and the Sleep Research Society is unequivocal. Healthy adults require at least seven hours of sleep per night on a regular basis to maintain optimal cognitive performance, metabolic health, and neurobehavioral functioning.

Consensus data confirms that durations below seven hours produce measurable deficits in psychomotor vigilance, information processing speed, and working-memory retention.

A systematic review examining acute partial and total sleep deprivation confirmed significant impairments across cognitive performance, mood stability, and subjective sleepiness. Psychomotor vigilance tasks show sharp increases in attention lapses after sleep restriction. A comprehensive meta-analysis demonstrated that sleep loss produces medium to large negative effect sizes on task-switching accuracy, working-memory maintenance, and reaction times.

While individuals may claim they have adapted to five or six hours of sleep, objective laboratory testing shows persistent performance deficits. Subjective perception of alertness often plateaus while actual cognitive failure rates continue to climb.

Insomnia and Neurocognitive Function

The performance risk is not merely about time spent in bed. Sleep quality and sleep architecture directly determine executive capacity. A systematic review and meta-analysis of 28 studies on adult insomnia revealed consistent, small-to-moderate deficits across executive functions.

The analysis found effect sizes of approximately −0.32 for inhibitory control reaction times and −0.30 for cognitive flexibility tasks. Working-memory performance showed an effect size deficit of −0.19.

Crucially, these cognitive impairments were significantly more pronounced in individuals with objective sleep disruption compared to those with normal objective sleep continuity. An executive can spend eight hours in bed, but if sleep is fragmented by micro-arousals, alcohol consumption, or sleep-disordered breathing, next-day executive performance will suffer.

Exercise as a Cognitive Catalyst

Physical exercise provides direct, measurable benefits to cognitive architecture. The World Health Organization recommends that all adults complete 150 to 300 minutes of moderate-intensity aerobic physical activity per week, or 75 to 150 minutes of vigorous-intensity activity, alongside muscle-strengthening exercises on two or more days per week. The WHO explicitly identifies cognitive health and improved sleep as core outcomes of regular physical activity.

These recommendations are reinforced by rigorous clinical data. A 2025 umbrella review encompassing 133 systematic reviews, 2,724 randomized controlled trials, and 258,279 participants demonstrated statistically significant exercise-induced improvements across general cognition, memory, and executive function. The standardized mean differences were 0.42 for general cognition, 0.26 for memory, and 0.24 for executive function.

Further meta-analytic evidence indicates distinct cognitive benefits from different exercise modalities:

• Aerobic exercise: Yields the strongest improvements in global cognitive processing speed and attentional capacity.
• Resistance exercise: Produces the greatest measurable improvements in executive function and inhibitory control.
• Mind-body movement: Demonstrates specific benefits for memory consolidation and emotional regulation.

Executives do not need an extreme athletic training schedule. Meeting baseline physical activity targets provides a proven foundation for sustained executive performance.

Caffeine Pharmacology and Adenosine Dynamics

Caffeine is the most widely used psychoactive stimulant in executive environments. It functions primarily as an adenosine receptor antagonist. Throughout waking hours, adenosine progressively accumulates in the brain, binding to A1 and A2A receptors to produce sleep pressure. Caffeine competitively binds to these receptors without activating them, temporarily blocking the sensation of fatigue.

The United States Food and Drug Administration states that 400 milligrams of caffeine per day, equivalent to approximately four standard cups of brewed coffee, is not generally associated with negative health effects in healthy adults. However, this is a general population safety benchmark rather than an individualized performance guideline.

Systematic reviews on caffeine consumption demonstrate that late-day intake significantly increases sleep onset latency, reduces total sleep time, and diminishes slow-wave sleep depth. Because caffeine has an average elimination half-life of five to seven hours, consuming coffee in the late afternoon ensures that a substantial concentration remains in the brain at bedtime.

Caffeine can temporarily restore psychomotor alertness during sleep-deprived periods. It cannot, however, substitute for sleep or restore higher-order complex reasoning deficits caused by chronic sleep debt.

Operational Friction and Context Switching

High-performing professionals rarely suffer from a lack of intellect. More often, their cognitive capacity is drained by continuous structural friction in their working environment.

• Friction Points in the Modern Workflow
• 1. High-frequency interruptions destroying complex mental models
• 2. Continuous communication monitoring causing attention residue
• 3. Unclear decision rights forcing unnecessary consensus meetings
• 4. Unbounded calendars scattering high-demand analytical tasks

The Mechanism of Attention Residue

When you transition from an unfinished strategic proposal to an incoming operational fire, your attention does not switch instantly. Research into cognitive task switching defines the concept of attention residue. When you shift between tasks, a portion of your cognitive processing remains anchored to the previous, unresolved problem.

Field research conducted by Dr. Gloria Mark at the University of California, Irvine, revealed that office workers spent an average of roughly three minutes on a given event before switching tasks or encountering an interruption. Furthermore, workers spent an average of approximately 23 minutes and 15 seconds before returning to the original interrupted project.

This 23-minute figure is not a rigid biological constant. It describes an observational pattern where employees address two or three intervening tasks before returning to their original focus.

The practical cost is severe. A calendar fragmented into back-to-back 30-minute meetings prevents the working memory from constructing the deep representations needed for complex strategy. The executive experiences a day of intense mental exertion while making virtually zero progress on foundational priorities.

The Realities of Decision Fatigue

Decision fatigue describes the observed decline in decision quality and self-regulation following long sequences of choice-making. While early popular theories framed willpower as a simple fuel that gets depleted, a 2025 systematic review clarified that definitions and mechanisms vary across the literature.

Rather than viewing willpower as a depleting fluid, modern cognitive science views decision fatigue as the accumulated burden of several interacting stressors:

• Working memory overload from evaluating multiple competing variables
• Emotional friction from navigating organizational politics or conflict
• Time pressure combined with high outcome uncertainty
• Continuous context switching between unrelated business domains
• Reduced time for reflection and physiological recovery

When executives face sustained, unbuffered decision volume, they instinctively drift toward low-effort choices. They default to the status quo, postpone critical actions, or make impulsive concessions during late-day negotiations. Building robust stress resilience and sustainable performance requires structural defenses against this pattern.

The Professional Reality: High-Stakes Demands and Triage Protocols

The standard wellness advice of eight hours of sleep, clean nutrition, and two hours of morning meditation often falls apart in executive life. High-stakes leadership inevitably involves red-eye flights, emergency board meetings, acquisition due diligence, and sudden operational crises.

I remember landing at Heathrow after a brutal overnight flight from New York. I had a board meeting in three hours. The standard advice of getting eight hours of sleep felt like a cruel joke. That was the exact moment I realized our readers do not need perfect scenarios. They need triage protocols. They need to know what the science says about recovering cognitive function when you only managed three hours of terrible sleep at high altitude.

When operating under acute resource constraints, you cannot apply standard routines. You must deploy systematic triage protocols designed to stabilize baseline neurobehavioral function.

• Acute Sleep Debt Triage Protocol
• Light: Secure 10 to 20 minutes of intense natural light immediately upon arrival.
• Hydration: Consume 500 to 750 ml of water with electrolytes to offset aviation dehydration.
• Stimulant Strategy: Ingest 100 to 200 mg of caffeine 45 minutes before the critical event; avoid continuous redosing.
• Working Memory Protection: Write out meeting objectives, core metrics, and bottom lines on paper.
• Decision Boundary: Formally postpone all irreversible strategic decisions not required in the meeting.

When you are acutely sleep-deprived, your psychomotor vigilance and working memory will have measurable deficits. You must alter how you interact with information:

• Do not trust mental calculations: Write down numbers, formulas, and constraints before speaking.
• Slow down your speaking cadence: This gives your prefrontal cortex time to compensate for slower processing speeds.
• Enforce a cooling-off period for conflict: Commit to zero unscripted emotional responses during the meeting.
• Rely on external structures: Use structured checklists and briefing documents instead of memory recall.

Practical Framework: The Capacity, Control, Coordination, and Recovery Model

To build a reliable operating system for executive mental stamina, we use a four-part model: Capacity, Control, Coordination, and Recovery.

• The 4-C Framework
• 1. Capacity (Physiological baseline: sleep, movement, metabolic inputs)
• 2. Control (Environmental design: notification boundaries, calendar architecture)
• 3. Coordination (Organizational workflows: decision rights, standardized memos)
• 4. Recovery (Systematic restoration: micro-breaks, post-crisis disengagement)

1. Capacity: Strengthening the Physiological Baseline

Capacity represents the raw biological power of your central nervous system. Without physiological capacity, psychological productivity tactics yield limited results.

• Target consistent sleep opportunities: Prioritize a non-negotiable seven-hour sleep window. Maintain a consistent wake time across all seven days of the week to stabilize circadian rhythmicity.
• Incorporate multi-modal movement: Accumulate 150 minutes of weekly zone-two cardiovascular training, alongside two dedicated resistance training sessions targeting major muscle groups.
• Structure caffeine intake strategically: Delay your morning caffeine intake by 60 to 90 minutes post-waking to allow natural cortisol clearance. Set a hard cutoff for caffeine consumption nine to ten hours before your target bedtime.

2. Control: Designing the Daily Environment

Control is your ability to direct your biological capacity toward high-value objectives without constant distraction.

• Establish focused analytical windows: Schedule two protected 60-to-90-minute focus blocks each week. Place these during your personal peak circadian alertness period for high-control work.
• Tier communication channels: Eliminate continuous inbox monitoring. Create three defined daily communication windows for email and messaging: morning triage, midday alignment, and end-of-day wrap-up.
• Create an emergency escalation path: Establish a single, high-friction communication channel for true operational emergencies. This frees you from the need to monitor low-priority channels continuously.

3. Coordination: Streamlining Workload Architecture

Coordination addresses how tasks, context, and decisions move across your organization. Poor coordination wastes substantial cognitive bandwidth.

• Categorize work by cognitive demand: Divide your daily tasks into distinct cognitive tiers to prevent unnecessary context switching.
• Cognitive Demand Tiers
• High-Control Work (Strategy, capital allocation, complex writing, contract negotiation)
• Schedule during peak morning alertness
• Medium-Control Work (Performance reviews, operational planning, routine analysis)
• Schedule during standard midday hours
• Low-Control Work (Expense approvals, inbox cleanup, formatting, logistics)
• Schedule during late-afternoon energy dips
• Standardize decision memos: Ban open-ended, unstructured update meetings. Require all strategic proposals to be submitted as structured, one-page briefs outlining the core problem, considered alternatives, key assumptions, and explicit risks.
• Externalize working memory: Never keep project dependencies, action items, or analytical constraints stored entirely in your head. Maintain a centralized, written operational ledger.

4. Recovery: Systematic Neurocognitive Restoration

Recovery is the deliberate restoration of attentional and physiological reserves. Sustained mental output requires structured disengagement.

• Integrate brief mental resets: Insert two-minute cognitive pauses between consecutive meetings. Step away from all monitors, look at distant visual horizons, and engage in slow nasal breathing to reset autonomic tone.
• Enforce post-crisis decompression: Following an intense operational sprint or complex transaction close, schedule a low-demand cognitive recovery day focused solely on routine administrative review.
• Maintain complete psychological disengagement: Establish a clear end to the workday. Disconnect completely from corporate communication channels during your evening wind-down window to protect your sleep and recovery.

The Executive Cognitive-Performance Audit

Before restructuring your schedule, you must identify your specific operational bottlenecks. Run this structured one-week audit to gather baseline data on your habits and performance.

• Weekly Audit Protocol
• Sleep Metrics: Record bedtime, wake time, sleep latency, night awakenings, and morning subjective readiness (scale of 1 to 5).
• Work Architecture: Track total meeting hours, count of context switches, message check frequency, and protected focus blocks.
• Cognitive Symptoms: Note instances of losing focus in meetings, re-reading text, impulsive replies, or deferred decisions.
• Physiology: Record movement sessions, caffeine timing and volume, meal timing, and alcohol intake.

How to Analyze Your Audit Data

At the end of seven days, review your data against these three critical diagnostics:

1. The Sleep to Fatigue Correlation: Did your severe afternoon energy slumps follow nights with less than seven hours of sleep, or were they triggered by high-glycemic lunches and late-afternoon caffeine crashes?
2. The Context-Switching Index: How many times did an unscheduled communication interrupt a high-control focus block? If the answer is more than twice per day, your communication architecture needs structural adjustment.
3. The Decision Deferral Pattern: What percentage of complex strategic choices were postponed after 4:00 PM due to mental fatigue? If this is a recurring issue, move your high-control tasks into morning focus blocks.

To review additional diagnostic frameworks for executive health, review our specialized resources in cognitive performance and mental clarity.

Structured Field Scenarios and Intervention Blueprints

To see how these principles apply in practice, consider these four common executive profiles and their tailored interventions.

Case 1: The Continuously Available Chief Executive

• The Profile: The CEO monitors messaging apps continuously, attends back-to-back operational syncs, and postpones deep strategic thinking until 9:00 PM.
• The Root Mechanism: Severe attention residue combined with sleep compression. Constant incoming requests keep the prefrontal cortex in a reactive state, preventing deep analytical reasoning.
• The Strategic Intervention: Establish an emergency telephone escalation protocol for operational issues. Block 8:30 AM to 10:00 AM every Tuesday and Thursday for strategic priorities with communication tools closed. Require one-page briefing memos for all capital requests.
• Target Metrics: Zero strategic work past 8:00 PM, a 50 percent reduction in daily context switches, and a consistent seven-hour sleep window.

Case 2: The Sleep-Deprived Dealmaker

• The Profile: A private equity partner averages 5.5 hours of sleep during active transactions. They rely on four cups of coffee daily and report severe afternoon mental fatigue during critical contract negotiations.
• The Root Mechanism: Accumulated sleep debt impairing psychomotor vigilance, working memory retention, and cognitive flexibility, masked by high doses of late-day caffeine.
• The Strategic Intervention: Establish a hard floor of seven hours in bed. Shift all caffeine consumption to before 12:00 PM. Use written negotiation checklists to externalize working memory during deal structuring. Move contract reviews to morning hours.
• Target Metrics: Improved working-memory retention during negotiations, elimination of late-day mental crashes, and measurable improvements in sleep quality.

Case 3: The Overloaded Portfolio Operator

• The Profile: An operating partner manages cross-functional initiatives across seven portfolio companies. They experience chronic mental fatigue from switching between marketing, supply chain, and legal topics throughout the day.
• The Root Mechanism: Excessive task-switching costs and working memory overload caused by moving between unrelated operational contexts.
• The Strategic Intervention: Thematically batch portfolio meetings by functional domain rather than scattering them across the week. Standardize weekly reporting formats across all business units. Take a mandatory five-minute cognitive pause between company reviews.
• Target Metrics: A 40 percent reduction in context switches, fewer contradictory decisions across business units, and faster re-entry into complex problems.

Case 4: The High-Performing Anxious Operator

• The Profile: A founder executes at a rapid pace but experiences constant urgency, shallow breathing, fragmented sleep, and impulsive, reactive communications with their team.
• The Root Mechanism: Autonomic nervous system hyperarousal impairing inhibitory control, elevating extraneous cognitive load, and disrupting restorative slow-wave sleep.
• The Strategic Intervention: Remove work communication apps from personal mobile devices. Enforce a mandatory five-minute delay before sending responses to contentious emails. Add two weekly zone-two aerobic sessions to improve parasympathetic tone.
• Target Metrics: A measurable reduction in reactive messages, improved sleep continuity, and greater emotional regulation during operational crises.

Evidence Limitations and Clinical Boundaries

A rigorous approach to executive performance requires acknowledging the clear limits of current research. Performance science is not a collection of guaranteed hacks. It is an evolving field with distinct boundaries.

• Evidence Realities and Limitations
• Willpower Depletion Models: The concept of decision fatigue is useful practically, but scientific debate continues regarding whether willpower operates as a strictly limited physical resource.
• Wearable Readiness Algorithms: Consumer biometric wearables provide useful trend estimates for sleep and resting heart rate, but proprietary readiness scores cannot directly measure higher-order executive judgment.
• Nootropic and Supplement Claims: Evidence supporting commercial cognitive-enhancement supplements in healthy, well-rested adults remains highly limited compared to the reliable benefits of sleep and exercise.
• Individual Variability: Sleep need, caffeine clearance rates, and circadian alertness patterns vary significantly across individuals based on genetics, age, and health status.

When to Seek Specialized Medical Evaluation

Lifestyle adjustments and organizational structures cannot resolve underlying clinical conditions. Executives should seek qualified medical evaluation when encountering:

• Chronic insomnia or non-restorative sleep lasting longer than three weeks
• Loud snoring, witnessed breathing pauses, or waking with choking sensations (indicators of obstructive sleep apnea)
• Sudden, unexplained declines in working memory, language recall, or spatial orientation
• Persistent depressive symptoms, chronic anxiety, or severe emotional detachment
• Unexplained physical fatigue that does not improve after adequate rest

Consult our comprehensive guides on healthy aging and executive longevity for long-term health and medical monitoring strategies.

Decision Quality Protocols and Externalization Architecture

Decision quality is distinct from the eventual outcome of a decision. In high-uncertainty environments, a disciplined decision process can occasionally result in a negative outcome due to bad luck.

Conversely, a poor, biased decision process can yield a positive outcome through chance. Sustainable performance is about maintaining a rigorous decision process regardless of external noise.

• Decision Quality Architecture
• 1. Frame the Core Question: Clearly define the exact problem and identify what this decision is not trying to solve.
• 2. Examine Counter-Evidence: Actively seek data that disproves your preferred path; require team members to outline failure modes.
• 3. Assess Reversibility: Classify the choice as Type 1 (irreversible, requires slow deliberation) or Type 2 (reversible, requires rapid execution).
• 4. Log Explicit Assumptions: Document key assumptions, operational dependencies, and expected quantitative milestones in writing.
• 5. Define Review Triggers: Establish clear operational milestones that will prompt a formal reassessment of the strategy.

To reduce cognitive load during complex reviews, separate the evaluation into distinct operational steps. Never combine open brainstorming, critical risk analysis, and final decision-making into a single, chaotic discussion.

Separating these functions allows working memory to focus on one cognitive mode at a time. This structural separation prevents emotional exhaustion and protects decision quality.

A Practical 30-Day Implementation Plan

Transforming your cognitive performance requires steady, structured execution rather than sudden, unsustainable changes. Use this 30-day roadmap to build a durable operating foundation.

Week 1: Measurement and Baseline Discovery

• Run the Executive Cognitive-Performance Audit for seven consecutive days.
• Track your sleep durations, caffeine timing, meeting density, and afternoon energy dips.
• Identify your single largest source of operational friction (for example, continuous email notifications or late-evening strategy work).
• Establish a firm caffeine cutoff time ten hours before your target bedtime.

Week 2: Protecting Physiological Capacity

• Set a non-negotiable seven-hour sleep opportunity each night.
• Standardize your morning wake time within a 30-minute window across all seven days.
• Schedule three 30-minute blocks of moderate-intensity aerobic exercise.
• Eliminate all alcohol consumption on weeknights to protect your deep sleep architecture.

Week 3: Establishing Environmental Control and Coordination

• Block two 90-minute focus sessions in your calendar for high-control strategic work.
• Establish three daily communication windows for email and message processing.
• Move routine status meetings to asynchronous, written update memos.
• Set up an emergency escalation channel to reduce the need for constant monitoring.

Week 4: Implementing Decision Architecture and Review

• Create a standardized decision brief for all major project proposals.
• Begin logging key assumptions and review dates for every irreversible strategic choice.
• Categorize your daily tasks into high, medium, and low cognitive demand tiers.
• Review your 30-day outcomes against the checklist below.

Next Steps Checklist

Apply these action items to adjust your operating routine this week:

• [ ] Choose your two protected 90-minute focus blocks for the upcoming week and place them on your calendar.
• [ ] Move your final cup of coffee to at least nine hours before your planned bedtime.
• [ ] Define your single emergency escalation channel and communicate it to your immediate team.
• [ ] Schedule two 30-minute resistance training sessions and two 30-minute aerobic sessions for the week ahead.
• [ ] Set an automatic notification shutdown on your phone for 9:00 PM every evening.
• [ ] Create a simple decision brief template for your organization's next strategic review.

Sources

1. pmc.ncbi.nlm.nih.gov
2. pmc.ncbi.nlm.nih.gov
3. fda.gov
4. who.int
5. who.int
6. umich.edu