Energy Management

Energy Management

Why Energy, Not Just Time

Time is fixed at 24 hours. Energy is renewable and manageable. An hour of high-energy work produces more than three hours of depleted work. Optimize for energy quality, not hours logged.

Ultradian Rhythms

The brain operates in 90-120 minute cycles of high and low alertness throughout the day.

Working with ultradian cycles

• Plan focused blocks to match cycle peaks (roughly every 90-120 min)
• Take 15-20 min breaks between cycles — don't push through the trough
• Signs you're in a trough: difficulty concentrating, restlessness, yawning, loss of focus
• Forcing through troughs reduces quality and extends recovery time

Chronotype — know your type

Work with your chronotype, not against it. Schedule deep work during peak; admin during trough.

Energy Audit

Track for 2 weeks: record energy level (1-10) every 90 minutes. Also note:

• What you were doing
• What you ate / drank
• Sleep hours previous night
• Exercise that day

Look for patterns:

• What time of day is energy consistently highest?
• Which activities drain energy the most?
• Which activities restore energy?
• How does sleep quality affect next-day energy?

Cognitive Load Categories

• Administrative | Routine, low-stakes decisions | Low | Scheduling, filing, copying | | Recovery | Rest, mindless movement | Negative (restores) | Walk, nap, stretching |

Rule: Do deep cognitive work during peak energy. Never deep work during trough.

Recovery Protocols

Micro-recovery (every 90 min)

• 15-20 minute break — non-screen preferred
• Short walk (even 5 min)
• Eyes closed / breathing
• Hydrate
• Not: checking social media or email (keeps nervous system activated)

Daily recovery

• Consistent sleep/wake time (±30 min even on weekends)
• At least one period of genuine downtime (not phone scrolling)
• Physical movement for at least 20-30 min
• Social connection — even brief, even async

Weekly recovery

• One full day with no work-related activities
• Activities that are truly restorative for you (differs per person)
• Nature exposure has strong evidence for cognitive recovery

Seasonal recovery

• Full disconnects every 6-8 weeks (even 3-4 days)
• Annual vacation with genuine work disconnection

Physical Energy Foundations

Sleep (highest-leverage intervention)

• 7-9 hours for most adults — not negotiable for peak performance
• Consistent schedule matters more than total hours
• Dark, cool room (18-19°C / 65-67°F)
• No screens 60 min before bed
• Caffeine half-life is 5-6 hours — last coffee by 2pm for 10pm sleep

Movement

• 20-30 min moderate exercise 3-5x/week improves cognition same day
• Walking specifically improves divergent thinking (creativity)
• Even 5-min walks during work breaks restore focus
• Sedentary stretches > 90 min degrade energy and cognition

Nutrition basics for cognitive performance

• Don't skip breakfast if you're a morning deep worker
• Avoid high-glycemic meals before focus sessions (causes crash)
• Hydration: even mild dehydration (1-2%) impairs cognition
• Caffeine: strategic use — not first thing, not after 2pm

Emotional Energy

Emotional states consume cognitive resources. Address emotional drains, don't just push through them.

Energy drains to identify

• Unresolved conflicts or difficult conversations avoided
• Commitments you resent (but haven't declined)
• Environments that feel unsafe or stressful
• Relationships that consistently deplete
• Work that conflicts with your values

Energy sources to protect

• Work that feels meaningful and aligned
• Relationships with high psychological safety
• Physical environments you feel good in
• Autonomy over your schedule and decisions
• Progress — even small visible wins boost energy

Sustainable Performance Framework

Stress inoculation

• Controlled challenge → recovery → adaptation
• Avoid both chronic stress (no recovery) and chronic comfort (no challenge)
• Deliberate practice at the edge of your ability + deliberate recovery

Warning signs of unsustainable pace

• Consistently sleeping < 6 hours
• Skipping all forms of exercise
• No genuine days off in > 2 weeks
• Irritability or emotional flatness
• Difficulty concentrating on tasks that used to be easy
• Cynicism about work you previously cared about
• Physical symptoms (headaches, getting sick repeatedly)

Weekly energy self-assessment

Energy average this week (1-10): ___
Sleep average (hours): ___
Exercise sessions: ___
Full recovery days: ___
Biggest energy drain: ___
One thing to protect/add next week: ___

High-Energy Triggers (personal)

Identify your personal energy triggers by observation:

Build your environment and schedule around your answers — this is your personal operating system.