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Focus Session Plannerの包括的な教育ガイドを準備中です。ステップバイステップの解説、数式、実例、専門家のヒントをお届けしますので、もうしばらくお待ちください。
The Focus Session Planner calculates optimal Pomodoro-style work and rest session lengths based on five factors: your typical attention span, task complexity, available time, current energy level, and medication status. Designed specifically for ADHD and neurodivergent users who find the classic 25-minute Pomodoro either too long (fatigue, restlessness) or too short (interrupting flow), the calculator adapts session length to your actual brain state. Beginners and unmedicated users may need 10-15 minute sessions; medicated adults working on familiar tasks can sustain 40-50 minute blocks productively. The Pomodoro Technique was created by Francesco Cirillo in the late 1980s using a tomato-shaped kitchen timer ('pomodoro' is Italian for tomato). The standard 25-minute work + 5-minute break structure was designed for neurotypical adults doing routine knowledge work. The technique gained massive popularity through the 2010s productivity movement and remains the most-used time management method globally. However, the rigid 25-minute structure fails many neurodivergent users — ADHD attention varies dramatically based on dopamine availability, novelty, interest, medication, sleep, and emotional state. Adapting session length to actual current capacity outperforms forcing the brain to match an arbitrary schedule. The calculator's algorithm weights each factor based on ADHD and neurodivergent research. Task complexity matters most: novel tasks (learning new skills, unfamiliar work) burn cognitive load 2× faster than routine tasks (familiar email, organized administrative work). Medication produces 15-25% capacity differences — stimulant medications meaningfully extend sustainable attention. Energy level reflects the daily variation that ADHD adults experience: sleep quality, food timing, hormonal cycles, and emotional state all impact same-day capacity. Combining these factors produces personalized session length matched to your actual current state rather than your aspirational state. This calculator helps you plan productive work sessions matched to your brain's current capacity. Enter your typical attention span (be honest — most ADHD adults sustain 15-30 minutes maximum), task complexity, available total time, medication status, and energy level. The calculator outputs work block length (10-50 minutes), break length (3-15 minutes), total sessions possible in your available time, total work and break time, and when to schedule a longer break (typically every 60 minutes of work, 15-30 minute break). Use to structure work sessions that produce actual output instead of forcing failed Pomodoro attempts.
Work Min = Attention Span × Complexity Multiplier × Medication Multiplier × Energy Multiplier; Break Min = Work / 4 (or Work / 3 if Work ≥ 40 min)
- 1Step 1 — Enter Your Typical Attention Span: Be honest about your actual sustained focus duration, not your aspirational duration. Most ADHD adults find their honest attention span is 15-30 minutes on routine tasks. Medicated adults: 20-40 min. Hyperfocus periods (90+ min) happen but aren't sustainable as baseline assumption. Track for a week if uncertain — set a timer and note when you naturally lose focus or need to switch.
- 2Step 2 — Select Task Complexity: Easy/routine tasks (familiar email, organizing files, simple admin): 1.3× multiplier — you can sustain longer than average. Medium tasks (typical work that matches your skill level): 1.0× — standard duration applies. Hard tasks (demanding work within your skill set): 0.7× — burn cognitive load faster. Novel tasks (learning new skills, unfamiliar content): 0.5× — half the typical session length to prevent burnout.
- 3Step 3 — Enter Available Total Time: How much time you have for the entire focus block, including breaks. Examples: morning work session (180 min), pre-lunch hour (60 min), afternoon block (240 min). Calculator divides this into work + break cycles. Be realistic about interruptions — if your environment has unavoidable interruptions every 60 min, plan blocks around those.
- 4Step 4 — Select Medication Status: On stimulant at peak (1-3 hours after dose for short-acting, 2-5 hours for extended release): 1.2× multiplier. Non-stimulant medication (steady-state): 1.05×. Unmedicated: 0.85×. Off medication today (forgot, breaks, or strategic): 0.75-0.95× depending on baseline. Schedule cognitively demanding work for peak medication windows.
- 5Step 5 — Select Energy Level: Low energy (tired, foggy, post-large-meal, end-of-day, illness): 0.7×. Medium (typical daily state): 1.0×. High energy (well-rested, exercise endorphins, novel project excitement): 1.1×. Energy is the most variable factor and worth honest assessment in the moment, not historical average.
- 6Step 6 — Calculator Computes Session Lengths: Work block = Attention Span × Complexity × Medication × Energy, clamped to 10-50 min range. Break length = Work / 4 (or Work / 3 if Work ≥ 40 min), clamped to 3-15 min range. Total sessions in available time = floor(available / (work + break)).
- 7Step 7 — Plan Longer Breaks for Multi-Session Work: For work sessions exceeding ~60 minutes total work time, schedule a longer break (15-30 minutes) at appropriate intervals. The calculator suggests 'long break after X sessions' based on cumulative work load. Long breaks should include physical movement, fresh air if possible, and avoid screens to give the brain genuine recovery.
Standard productive session for medicated adult on familiar work
25 × 1.0 (medium task) × 1.2 (stimulant) × 1.0 (medium energy) = 30 min work blocks. Break length 30/4 = 8 min. Three full 38-min cycles fit in 120 min available, with 14 min remaining for setup/cleanup. This represents typical productive work for a medicated adult on familiar tasks — solid output without burnout.
Conservative sessions match limited current capacity
15 × 0.5 (novel) × 0.85 (unmedicated) × 0.7 (low energy) = 4.5 min, clamped to 10 min minimum. Break 3 min. This represents reality for someone learning a new skill while tired and unmedicated — short sessions with frequent breaks acknowledge limited current capacity. Forcing 25-minute sessions would result in failure and frustration.
Extended focus possible when all factors align
30 × 1.3 (easy) × 1.2 (stimulant) × 1.1 (high) = 51 min, clamped to 50 min maximum. Break 50/3 = 17 min, clamped to 15. Four sessions in 240 min available. This represents the upper end of sustainable focus — possible for medicated, well-rested adults on familiar work. Don't try this configuration daily; this is for exceptional days when everything aligns.
Minimum viable sessions when capacity is low — still productive
20 × 0.7 (hard) × 0.85 (off meds, estimated) × 0.7 (low) = 8.3 min, clamped to 10 min minimum. Four 13-minute cycles in 60 min available delivers 40 minutes of focused work — still meaningful output despite low-capacity conditions. The lesson: very short sessions still produce results; insisting on longer 'real' sessions during low-capacity periods produces zero output instead of meaningful output.
Daily work planning for ADHD adults in office or remote work environments
Students managing study sessions for exams or coursework with realistic time blocks
Anyone wanting to use Pomodoro but needing it adapted to their actual brain rather than forcing 25 minutes
Parents helping children with ADHD complete homework in age-appropriate sustainable sessions
ADHD coaches and therapists prescribing time management strategies matched to client capacity
| Profile | Work Block | Break Length | Notes |
|---|---|---|---|
| ADHD beginner, unmedicated, hard task | 10-12 min | 3 min | Build tolerance gradually |
| ADHD beginner, medicated, medium task | 20-25 min | 5-6 min | Classic Pomodoro works here |
| ADHD intermediate, medicated, easy task | 30-40 min | 8-10 min | Extended productive sessions |
| ADHD advanced, medicated, peak energy | 45-50 min | 12-15 min | Approaching neurotypical sustained focus |
| Hyperfocus mode (situational) | 60-120 min | 20-30 min | Manage as finite resource |
| Crisis/low-capacity day | 5-10 min | 3-5 min | Micro-sessions still productive |
Why doesn't 25-minute Pomodoro work for me?
Classic Pomodoro assumes neurotypical attention with consistent capacity. ADHD attention is highly variable — sometimes 5 minutes feels impossible (low capacity day), sometimes 90 minutes flies by (hyperfocus). Forcing 25-minute blocks regardless of state produces frequent failure (giving up at 12 minutes) or wasted opportunity (stopping at 25 when 60 was possible). Adaptive session length matched to current state outperforms fixed 25-minute blocks for ADHD users.
What if I hyperfocus and don't want to break?
Hyperfocus can be productive but causes burnout and physical issues if extended too long: eye strain, dehydration, neglected hunger and bathroom needs, depleted post-flow energy. Set a soft 90-minute alarm even during hyperfocus to prompt at least a stand-up and water break. Hyperfocus blocks can substitute for multiple Pomodoros but should still include physical breaks every 60-90 minutes minimum to maintain quality and prevent the post-hyperfocus crash.
Should I use medication timing for work blocks?
Yes — schedule cognitively demanding work for medication peak hours. Short-acting stimulants (Adderall IR, Ritalin IR) peak 1-3 hours after dose. Extended release (Adderall XR, Vyvanse, Concerta) peak 2-5 hours after dose. Use this window for hard tasks. Use medication ramp-up and ramp-down periods for routine work, admin, email. Working with medication pharmacology dramatically improves productivity.
What if I can't even hit 10 minutes?
Use 5-minute 'sprints' instead — set a 5-minute timer, work, then 2-minute break, repeat. This 'micro-Pomodoro' approach works during severe low-capacity periods. Also consider whether the right action is rest instead of forcing work — sometimes the productive choice is acknowledging current incapacity and recovering rather than producing nothing while suffering. ADHD productivity is non-linear; tomorrow may be vastly different from today.
How do I know if I'm in hyperfocus vs just productive?
Hyperfocus signs: loss of time awareness (suddenly 4 hours passed), forgetting basic needs (haven't drunk water, ignored hunger), difficulty stopping when needed, post-session crash. Productive flow: aware of time but engaged, able to stop for genuine emergencies, end state is satisfied tiredness not depletion. Both produce output, but hyperfocus has higher recovery cost — manage as a finite resource.
Should I take all the calculated breaks?
Yes, generally. Break length isn't arbitrary — it's calibrated to allow neurological recovery between work blocks. Skipping breaks during medium-energy day reduces sustainability of subsequent blocks. Use breaks for: standing up, water, looking out window (eye rest), physical movement (stretch, walk), brief social interaction. Avoid: scrolling phone (visual fatigue continues), starting new tasks (context switch), high-stimulation content (counters recovery effect).
Does this work for non-ADHD users?
Yes — the framework benefits anyone who finds rigid 25-minute Pomodoros suboptimal. Neurotypical users with high capacity often benefit from 45-60 minute blocks rather than fixed 25. Students preparing for exams (high cognitive load, often low energy) benefit from shorter sessions. The calculator's flexibility serves anyone wanting to match work blocks to actual current capacity rather than forcing arbitrary durations.
プロのヒント
Match task complexity to medication and energy state, not the other way around. Save hard novel tasks for medicated peak + high energy mornings. Use medication tail + low energy afternoons for routine tasks (email, admin, organizing). Working with your brain's actual capacity outperforms forcing it to match arbitrary schedules. Calendar-block your peak windows specifically for deep work and protect them ruthlessly from low-value meetings and admin.
ご存知でしたか？
The Pomodoro Technique was invented in the late 1980s by Italian university student Francesco Cirillo using a tomato-shaped kitchen timer he had on his desk — 'pomodoro' is Italian for tomato. He developed it as a tool for himself to overcome procrastination during exam prep. The 25-minute interval was based on his personal experimentation, not research — meaning the universal '25 minutes' became standard primarily because of cultural transmission rather than empirical optimization. Adaptive durations based on individual capacity (as this calculator provides) more accurately reflect what works best for diverse cognitive styles.