Sleep
Sleep monitoring without sleep anxiety
Use timing and daytime function before obsessing over stage graphs.
Read article →The companion hub for The Body Hacker
Know your signals. Build your system.
Free, practical tools to help you observe sleep, recovery, energy, focus and performance without turning your life into one endless dashboard.
Observe firstBuild a baseline before changing everything at once.
Test one thingUse simple experiments to learn what actually helps you.
Trust patternsUse wearables as clues, not commands or diagnoses.
The Body Hacker filter
Less hype. Better questions.
The goal is not to collect hacks. It is to understand which foundations deserve to stay, which experiments are worth testing, and which claims should make you sceptical.
MASTER IT
Build the high-value foundations you can repeat.
Build the high-value foundations you can repeat.
TEST IT
Run sensible personal experiments when the evidence is promising.
Run sensible personal experiments when the evidence is promising.
QUESTION IT
Slow down when the marketing is moving faster than the evidence.
Slow down when the marketing is moving faster than the evidence.
Free resources
Track what matters.
Every tool works directly in your browser. Entries stay on your device unless you choose to export them.
Start here
7-Day Baseline
See your starting patterns across sleep, energy, movement, soreness, stress and focus.
Start the baselineSleep
Sleep Rhythm Tracker
Track timing, morning light, caffeine cut-off, wind-down and how you function the next day.
Track sleepRecovery
Recovery Signal Log
Compare demand, soreness, fatigue, motivation and wearable signals over time.
Log recoveryWearables
Trend Decoder
Put device data beside subjective energy so one strange score does not hijack your day.
Decode trendsExperiment
N=1 Experiment Planner
Define one change, one useful outcome and the confounders that might otherwise fool you.
Plan an experimentPrintable
Body Hacker Protocol Card
A one-page reminder of the questions and cycle that keep experimentation grounded.
View protocolRead next
Short, useful articles.
Recovery
Recovery hacks that earn their place
Start with the basics, then judge gadgets against a real purpose.
Read article →Wearables
Patterns, not commands
What consumer trackers can tell you, and what they cannot.
Read article →Free companion eBook
Prefer to read as well as listen? Get the digital companion edition free.
Before the download, there is a short optional request for an honest review. The download is available whether you review or not.
Get the free eBookFree Body Hacker toolkit
Measure before you believe.
Use these tools to notice patterns, test one change at a time and keep measurements connected to how you actually function.
7 days
Baseline Tracker
Sleep, energy, movement, soreness, stress and focus in one simple daily check-in.
Open trackerSleep
Sleep Rhythm Tracker
Timing, light, caffeine, wind-down, sleep quality and next-day function.
Open trackerRecovery
Recovery Signal Log
A daily view of load, soreness, fatigue, motivation and optional wearable numbers.
Open trackerWearables
Wearable Trend Decoder
Compare device scores with resting heart rate, HRV and how you actually feel.
Open trackerRead
Free eBook
Get the digital companion edition after an optional request for an honest review.
Go to eBookBodyHackerHQ
The Body Hacker Protocol Card
A simple filter for deciding what deserves a place in your routine.
Master ItDoes strong evidence suggest this belongs in your foundation?
Test ItIs the evidence promising enough for a sensible personal experiment?
Question ItAre the claims moving faster than the evidence?
The cycle: Signal. Stress. Adapt. Recover. Measure. Repeat.
The Body Hacker method
Build before you hack.
Good self-experimentation starts with foundations, a useful question and enough patience to separate patterns from noise.
Start with the operating system.
Sleep, movement, fitness, recovery, stress response, metabolic health and consistency form the base. Advanced tools make more sense once the base is stable.
1
Observe
Understand your starting point before making several changes at once.
2
Experiment
Change one useful variable and decide in advance what outcome would matter.
3
Decide
Keep what helps, drop what does not, and stay cautious when the evidence is weak.
Core principle
Build before you hack. Measure before you believe. Experiment before you commit.
BodyHackerHQ journal
Useful science. Fewer absolutes.
Short reads on sleep, recovery, wearables, stress resilience and building performance that lasts.
Free companion eBook
One quick favour before you download.
If you have listened to The Body Hacker, an honest review can help other listeners decide whether the book is right for them.
Reviews should always be honest.
You are welcome to leave a positive, mixed or critical review. Reviewing is optional and is not required to access the free eBook.
Preview note: both destination links are placeholders until you provide the review URL and final eBook file.
Start here
7-Day Baseline Tracker
For seven days, observe before you optimise. Look for repeating patterns rather than perfect scores.
Private by default
Your entries stay in this browser.
No account is required. You can export a CSV whenever you want a copy.
Health note: This is an observation tool, not a medical device. Persistent symptoms, unusual changes or significant concerns deserve appropriate professional assessment.
Your trend
Progress over time
The graph uses entries stored on this device. Look for repeated patterns rather than reading too much into one point.
Entries0
Avg sleepNo data
Avg energyNo data
Avg focusNo data
Saved entries
| Date | Sleep | Energy | Movement | Soreness | Stress | Focus | Notes |
|---|
Sleep
Sleep Rhythm Tracker
Track the rhythm around sleep, not just a device-generated stage score.
Private by default
Look for rhythm, not perfection.
Your entries stay locally in this browser.
Your trend
Progress over time
The graph uses entries stored on this device. Look for repeated patterns rather than reading too much into one point.
Entries0
Avg sleepNo data
Avg qualityNo data
Avg day functionNo data
Saved entries
| Date | Bed | Wake | Sleep | Light | Caffeine | Wind-down | Quality | Function | Notes |
|---|
Recovery
Recovery Signal Log
Put training load, soreness, fatigue and readiness in the same place before deciding whether you need another recovery gadget.
Pattern finder
Feeling recovered and being fully adapted are not always the same thing.
Your trend
Progress over time
The graph uses entries stored on this device. Look for repeated patterns rather than reading too much into one point.
Entries0
Avg loadNo data
Avg fatigueNo data
Avg readinessNo data
Saved entries
| Date | Load | Soreness | Fatigue | Readiness | Sleep | RHR | HRV | Notes |
|---|
Wearables
Wearable Trend Decoder
Compare the number on the screen with the human being wearing the device.
Trust patterns
A measurement is information, not an instruction.
One unusual number can start a question. Repeated signals are usually more useful.
Your trend
Progress over time
The graph uses entries stored on this device. Look for repeated patterns rather than reading too much into one point.
Entries0
Avg device scoreNo data
Avg energyNo data
Avg RHRNo data
Saved entries
| Date | Recovery | RHR | HRV | Sleep score | Energy | Feel | Context |
|---|
N=1 experiment
Test one thing.
Turn an interesting hack into a useful question before deciding whether it belongs in your routine.
Experiment planner
One change. One useful outcome. Enough time to observe.
Your saved experiment summary will appear here.
Sleep
Sleep monitoring without sleep anxiety
Your sleep data should help you notice patterns, not turn bedtime into another performance test.
Sleep trackers can make hidden patterns visible, but they can also make a normal night feel like a failure. A stage graph is an estimate, not a verdict on whether you are allowed to feel rested.
Start with rhythm
Before chasing perfect deep-sleep percentages, look at when you sleep and wake, whether your schedule is reasonably consistent, and whether you have enough opportunity to sleep.
Connect the night to the day
Ask whether you can concentrate, train, work and move through the day with reasonable energy. Daytime function provides context that a device score cannot supply on its own.
Use numbers to start questions
A strange reading can be worth noting. Repeated patterns matter more. If persistent sleep problems or daytime exhaustion are affecting your life, that belongs in an appropriate healthcare conversation rather than an app-based self-diagnosis.
Educational only: This article is not medical advice, diagnosis or treatment.
Recovery
Recovery hacks that earn their place
The recovery industry is enormous. Your minimum effective recovery strategy does not have to be.
Before cryotherapy chambers, compression boots, massage guns and complicated supplement stacks, cover the things recovery actually requires.
Start with the basics
Sleep, enough fuel, normal hydration, enough time between demanding sessions and genuinely easy movement are not glamorous. They are still the foundation.
Judge a tool against a purpose
If a method reduces soreness, helps you relax or makes a difficult training schedule easier to sustain, that may be useful. It does not need mystical properties to earn a place.
Do not confuse feeling better with complete adaptation
A technique can make soreness feel better without meaning that the underlying training adaptation has instantly finished. Recovery is not about erasing every sign that you trained.
Educational only: Persistent pain, injury concerns or unusual symptoms deserve appropriate assessment.
Performance
Reach your potential without living at maximum intensity
Peak performance is not maximum output every hour of every day.
For an athlete, performance may mean speed, strength and endurance. For somebody doing demanding cognitive work, it may mean thinking deeply without spending the rest of the day exhausted. The destination is personal.
Build capacity
Fitness, strength, movement habits, sleep regularity and recovery are rarely as exciting as a new gadget. That is precisely why foundations are easy to overlook.
Keep the downshift
Useful performance includes the ability to recover when demand passes. Resilience is not being permanently switched on.
Compare with yourself
Your wearable estimate, race pace or training score can be useful, but the more important question is whether your own capacity is moving in the right direction.
Wearables
Trackers and wearables: patterns, not commands
A useful measurement should answer a useful question, not create a new anxiety.
Modern wearables can put heart rate, sleep timing, steps, temperature trends, estimated aerobic fitness and recovery scores on your wrist. That is extraordinary, but it can create too much certainty around numbers that still contain uncertainty.
Information, not instruction
If resting heart rate is higher than usual for one night, a device cannot automatically tell you why. Training, stress, alcohol, travel, illness, heat, dehydration and measurement error can all contribute.
Watch your own trend
Metrics such as HRV vary greatly between people and devices. Your own pattern under reasonably similar conditions is usually more useful than comparing your number with somebody else's.
Know the limits
Some metrics are more direct than others. Sleep stages and composite readiness scores involve substantial algorithmic interpretation. Use them as context, not as diagnoses.
Body Hacker rule: Trust patterns more than isolated numbers.
Resilience
Stress resilience: challenge plus recovery
Zero stress is not the target. Better dosing and better recovery are more useful goals.
Exercise, learning, competition, deadlines and difficult conversations are all stressors. The useful question is whether the challenge is appropriately dosed and whether recovery is keeping pace.
Resilience is not endless tolerance
Being resilient does not mean ignoring exhaustion. It means developing enough capacity and flexibility to meet appropriate demands, then being able to come back down.
Build a downshift
A walk, a calmer transition home, a few quiet minutes or a repeatable evening routine can become a signal that a demanding period is finished.
Watch total load
A hard workout may be manageable in a calm week and much harder to absorb during travel, poor sleep, illness or a major work deadline.