Don't Die Updates

What WHOOP Taught Me in February: Fitness Gains, Recovery Wins, and the Ongoing Sleep Struggle

Published

1 year ago

March 2, 2025

My second full month using WHOOP 4.0 revealed a fitness bump, better recovery, and a reminder that quality sleep still needs to be my top priority.

Today, marks the second month with WHOOP and the journey continues. In February, I completed my second full month wearing the WHOOP 4.0, and the results were both encouraging and eye-opening. Compared to January, I gained in some key areas, especially heart rate variability (HRV) and resting heart rate (RHR). However, I also saw where I continue to fall short.

While I logged more workouts and total training time than last month, my overall strain was actually lower. And while recovery improved, my sleep performance still isn’t cutting it, especially if I want a perfect 100 in the Don’t Die app, which uses my WHOOP data and requires 7 hours of sleep minimum to hit the top score.

Let’s break it all down.

Strain: More Time, Less Stress

In January, I hit an average daily strain of 15.7. In February, that number dipped to 14.3, even though I logged 38 activities (2 more than January) and trained for 39 hours and 18 minutes in total (up from 35 hours and 38 minutes).

So what changed? I was a bit more consistent and diversified. I ran 29 times, walked, golfed, and even added in some weightlifting. Despite spending more time training, the slightly lower average strain suggests I may have balanced my effort better and avoided overreaching.

Strain by Day (Feb vs Jan Averages):

Tuesday: 16.3 vs 17.5
Wednesday: 16.2 vs 17.4
Friday: 15.6 vs 14.5
Sunday: 15.3 vs 16.4

It was a smoother curve overall, and I spent more time in fat-burning and aerobic zones rather than all-out anaerobic bursts. That’s a win for building aerobic base without crushing recovery.

Recovery: Trending Up

This might be the biggest success of the month. My HRV rose from 25 ms in January to 29 ms in February, a 16% improvement. At the same time, my resting heart rate dropped from 50 bpm to 47 bpm, a great sign that my cardiovascular system is adapting well to training.

The WHOOP Recovery trend also reflected more green days (high recovery), fewer red zones, and better alignment between strain and readiness. That kind of balance is what prevents burnout and keeps progress sustainable.

Sleep: Still the Weak Link

Sleep continues to be my biggest area for improvement. My sleep performance dropped by 4% from January to February. While I still averaged over 7 hours in bed, the quality of sleep—especially restorative sleep (REM and SWS)—was flat or slightly down.

Here are the numbers:

Average sleep duration: 7:28 (down from 7:38)
Restorative sleep: 2:01 (almost identical to January’s 2:05)

Once again, I’m reminded of this quote from Bryan Johnson:
“Sleep is the most powerful drug available. For performance, mental health and well-being.”

That line hits differently now that I’m tracking every hour. And with Don’t Die setting a 7-hour sleep minimum to score 100 points, I’m barely getting by now on the longevity leaderboard.

Leveling Up in Don’t Die

One of the best parts of wearing WHOOP is how it syncs directly with the Don’t Die app. To get a perfect score of 100 points each day, I need to hit targets for steps, sleep, and calories burned. I’m starting to string together more consistent 100-point days, and it feels like progress is finally showing up in both the data and how I feel.

The increased activity, better recovery, and closer attention to sleep are starting to pay off. It’s motivating to see my daily effort translate into real improvements in the game, and more importantly, in my health.

The Bigger Picture: Progress, Not Perfection

February showed clear signs of progress. More training, better recovery, and physiological markers moving in the right direction. It’s rewarding to see my body adapt when I pay attention to the feedback WHOOP is giving me.

Still, I know I’m leaving performance gains on the table by not fully dialing in my sleep. This next month, my focus is getting to bed earlier, staying asleep longer, and hitting my sleep need more consistently.

Final Thoughts

Two months in, WHOOP has gone from a wearable to a coach on my wrist. February reminded me that it’s not just about how much I move, but how well I recover and sleep between the efforts.

If you’re thinking about using WHOOP, just be prepared for the data to call you out. It’s honest, and that’s exactly what makes it valuable.

Copy of My Whoop Data for February 2025

Monthly_PA_February-2025 Download

🩺 Disclaimer

The content on I Won’t Die is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with any health concerns.

🚀 Get Started with Blueprint

Start optimizing your health today with $25 off your first order! Use our referral code to begin your Blueprint journey and take control of your longevity.

🏋️‍♂️ Track Your Sleep, Workouts & Recovery

Boost your performance and recovery with Whoop. Join with my referral link to get a free WHOOP 5.0 and one month free!

📲 Download the I Won’t Die App

Stay ahead with the latest news, updates, and insights. Download the I Won’t Die app now on the Apple App Store and Google Play!

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Have tips, photos, or questions? Want to collaborate? Reach out at [email protected] — we’d love to hear from you!

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Don't Die Updates

Red Mode Is Live: Become a Professional Sleeper

Published

3 months ago

March 5, 2026

Sean Callahan

Deep red night screen in one tap, plus Autopilot scheduling that makes it set-and-forget.

Today, I shipped a new iPhone app today called Red Mode.

It’s built for one thing: making it ridiculously easy to get a deep red screen at night, on demand or automatically, without turning your evening into a settings scavenger hunt.

Red Mode - Deep Red, One Tap, Set it Once with Autopilot

If you’ve been following Bryan Johnson’s longevity work, you’ve probably heard him talk about becoming a professional sleeper. That phrase stuck with me because it’s not about hacks, it’s about building a simple routine you can actually stick to.

Red Mode is my tiny contribution to that idea.

Why I Built It

A lot of people want the benefits of a night friendly screen, but the setup friction is real. iOS can do deep red with Color Filters, and Shortcuts can automate it, but most people never bother because it feels like a hassle.

So I built Red Mode to make the whole thing feel like a product:

clear setup steps
one tap actions
a simple Autopilot schedule
a clean Wind Down button for nights when you just want it now

The goal is not perfection. The goal is consistency.

What Red Mode Does

Deep Red, One Tap

If you scroll in bed, check your phone in a dark room, or just want a calmer screen at night, this is the main event.

Tap once and your screen goes deep red.

Set It Once with Autopilot

This is the feature I recommend for almost everyone.

Autopilot turns Red Mode on at night and off in the morning. It’s genuinely set-and-forget once you enable it.

Setup is intentionally fast. Installing the included Shortcuts and creating the automations takes about 2 minutes if you follow the steps.

Wind Down Before Bed

Wind Down is for the nights you want an immediate reset.

Use it when:

you did not set up Autopilot yet
you are traveling or your schedule is different
you want a quick, intentional “I’m done for the night” moment

If you do not set up Autopilot, Wind Down is what you will run each night.

If you do set up Autopilot, Wind Down becomes optional, like a manual override.

Morning Red Session

This one is different and very intentional.

Morning Red Session is a bright, timed red screen you can run in the morning. It’s built to support a simple routine with a timer, without overthinking it.

Instant On or Off

You can always toggle red on or off anytime. No ceremony, no digging.

Who It’s For

bedtime scrollers who want a calmer screen at night
parents checking a phone in a dark room
night shift users
stargazers and anyone protecting dark adaptation
photographers and darkroom folks who want red light options
anyone trying to build better sleep habits and a consistent evening routine

Design Notes

I thought a lot about keeping the design quiet and obvious. The app should feel like it belongs on your phone, not like a gadget.

It was a fun project to build, and I hope it’s genuinely useful for anyone who cares about sleep, routines, and longevity.

Price

Red Mode is a $0.99 one-time purchase. No subscription.

Download

You can grab it here:
https://apps.apple.com/us/app/red-mode-red-screen-night/id6759926783

If you try it, I’d love your feedback. And if you find it useful, a quick App Store review really helps.

Red Mode - Wind Down, Morning Red Session, Instant On or Off

🩺 Disclaimer

🚀 Get Started with Blueprint

Start optimizing your health today with $25 off your first order! Use our referral code to begin your Blueprint journey and take control of your longevity.

🏋️‍♂️ Track Your Sleep, Workouts & Recovery

Boost your performance and recovery with Whoop. Join with my referral link to get a free WHOOP 5.0 and one month free!

📲 Download the I Won’t Die App

Stay ahead with the latest news, updates, and insights. Download the I Won’t Die app now on the Apple App Store and Google Play!

📩 Contact Us

Have tips, photos, or questions? Want to collaborate? Reach out at [email protected] — we’d love to hear from you!

🔗 Stay Connected

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Don't Die Updates

The Sleep Blueprint: Bryan Johnson’s Data-Backed Guide to Better Rest

Published

11 months ago

July 9, 2025

Sean Callahan

Bryan Johnson shares his personal protocol for mastering sleep, backed by data, wearables, and years of experimentation.

Today, sleep isn’t just rest. It’s a skill you can master. Bryan Johnson calls it the greatest performance enhancing drug on Earth. Not a supplement or a superfood, but something you already do or should do every night.

In his latest video podcast episode, Bryan lays out the advanced sleep system he used to get eight consecutive months of perfect sleep. This isn’t a gimmick or another top 10 list. It’s a personal science experiment, honed by data and habit, that anyone can learn from.

Let’s break down what makes his protocol different and how you can apply it to your life.

Why Sleep Matters More Than You Think

Bryan makes it clear: sleep isn’t just a pillar of health, it’s the foundation. It influences your mood, your memory, your relationships, even your earning potential. And yet, most people treat sleep as optional, sacrificing it for work, social events, or binge watching stressful TV shows.

His point is simple: you wouldn’t show up late to a work meeting, so why show up late to your own bedtime?

Resting Heart Rate is Your Sleep Report Card

The secret weapon of Bryan’s sleep mastery is his resting heart rate before bed. Unlike typical wearables that track heart rate during sleep, Bryan focuses on what it’s doing right before his head hits the pillow.

If your heart rate is low at that moment, you’re primed for a great night. If it’s high, you’re headed for poor recovery. Food, stress, screens, arguments, anything that raises heart rate before bed is the enemy.

He uses this single metric to simplify the chaos of health and behavior. It’s the north star of his evening routine.

Food is the Number One Sleep Killer

According to Bryan and his team, nothing wrecks sleep like eating too close to bedtime, even if the food is “healthy.” Digestion activates the nervous system and raises heart rate. In Bryan’s case, even hummus and vegetables at the wrong time led to poor sleep data.

The takeaway: finish your final meal at least four hours before bed. For best results, aim for six to eight.

Become a Professional Sleeper

One of the most useful mindset shifts Bryan promotes is treating sleep like a job. Schedule it. Protect it. Track it. Improve it.

Here are his 10 essential tips for achieving elite sleep:

Adopt a professional mindset – Sleep is your job.
Stop eating early – Final meal 4 to 8 hours before bed.
Start a wind down routine – 30 to 60 minutes of screen free calm.
Use light to reset your clock – Get morning light or use a 10,000 lux lamp.
Stick to a bedtime – Same time every night, ideally within a few minutes.
Avoid caffeine late in the day – Its half life can destroy sleep quality.
Eliminate blue light – Use red or amber lighting in the evening.
Cool your room – 69 to 71°F is optimal.
Control noise – Use sound machines or earplugs if needed.
Track your data – Wearables help create powerful sleep habits.

Bonus Tips That Make a Big Difference

The team added a few more actionable strategies:

Move your phone away from your bed to reduce the temptation to scroll.
Try journaling before bed to unload mental clutter or anxiety.
Use your bed only for sleep and sex to train your brain for rest.
Sleep separately from your partner if necessary and if possible for higher quality rest.

These are the habits that support a long life, strong mind, and healthy body.

Final Thoughts

There’s no magic pill for better sleep. But there is a repeatable protocol, tested by Bryan and fine tuned with real data, that can help you get there. If you’re tired of feeling tired, his approach offers something powerful: control.

Track your heart rate. Experiment with your evening routine. Make one small change today. And most of all, treat sleep with the seriousness it deserves.

If you want to live longer, think sharper, and feel your best, it all starts with sleep. Got a sleep tip that works for you? Share it in the comments below.

🩺 Disclaimer

🚀 Get Started with Blueprint

Start optimizing your health today with $25 off your first order! Use our referral code to begin your Blueprint journey and take control of your longevity.

🏋️‍♂️ Track Your Sleep, Workouts & Recovery

Boost your performance and recovery with Whoop. Join with my referral link to get a free WHOOP 5.0 and one month free!

📲 Download the I Won’t Die App

Stay ahead with the latest news, updates, and insights. Download the I Won’t Die app now on the Apple App Store and Google Play!

📩 Contact Us

Have tips, photos, or questions? Want to collaborate? Reach out at [email protected] — we’d love to hear from you!

🔗 Stay Connected

📬 Subscribe to I Won’t Die Newsletter

Get the latest longevity breakthroughs, Blueprint updates, and exclusive content straight to your inbox — sign up now!

Don't Die Updates

Don’t Die Podcast #7: How Sauna Improved Bryan Johnson’s Vascular Health

Published

11 months ago

June 26, 2025

Sean Callahan

This episode explores how daily 200°F sauna sessions led to major improvements in blood pressure, detoxification, and cellular health in just three weeks.

Today, we explore how 20 minutes a day in a 200°F dry sauna impacted Bryan Johnson’s body and biomarkers.

In Don’t Die Podcast #7, Bryan Johnson shares results from his latest self-experiment: a 21-day high-heat sauna protocol. While most people use a sauna to relax, Johnson’s team treated it like a clinical trial, tracking blood pressure, inflammation, mitochondrial health, and toxin excretion.

The results? Bryan and his team discuss measurable improvements in cardiovascular markers, potential reductions in toxin levels, and elevated heat shock proteins that play a role in cellular repair and longevity. The experience, however, was far from easy and required ice packs on his head and testicles to endure the heat.

Why sauna? The science behind the sweat

Research from Finland and other countries shows sauna use is associated with:

50 to 70 percent lower risk of cardiovascular disease
40 percent reduction in all-cause mortality
Reduced dementia and Alzheimer’s risk

Most of these benefits are tied to heat stress, not just sweating. The body responds by increasing nitric oxide, dilating blood vessels, boosting circulation, and mimicking some of the effects of cardiovascular exercise. It also activates heat shock proteins, which repair damaged proteins and reduce inflammation.

Mimicking exercise without moving

Sauna exposure raises heart rate and mimics light aerobic activity like zone one cardio. It’s an “exercise mimetic,” producing cardiovascular effects without physical movement. Bryan saw:

A 5.8 percent drop in central systolic blood pressure
A 21 percent improvement in aortic flexibility
A decrease in arterial stiffness based on augmentation index

These changes came after just 7 sessions and were maintained through 18 to 21 sessions, suggesting sauna is a fast-acting tool for vascular health.

The detox protocol and early biomarker shifts

Bryan and his team tracked 100+ biomarkers including inflammation (CRP), growth hormone, cortisol, vascular age, and mitochondrial function. Highlights included:

CRP dropped approximately 30 percent
Blood flow visibly improved during blood draws
Bryan’s vascular age decreased from 29 to early 20s

Although not all markers changed (his baseline was already elite), the sauna appeared to boost the body’s ability to detox. They expect to see drops in heavy metals, phthalates, and persistent organic pollutants in upcoming urine toxin panels.

Icing testicles, sleepless nights, and cramping

This wasn’t a spa day. For the first two weeks, Bryan felt exhausted, had disrupted sleep, and suffered intense cramps due to electrolyte loss. To mitigate the effects:

He used ice packs on his head and genitals
He added 600–700 mg sodium, plus potassium and magnesium, post-sauna
He wore cotton clothing to avoid plastic toxins
He shifted his sauna timing away from bedtime to improve sleep

He also avoided pouring water on sauna rocks, due to concerns over toxins in tap water becoming airborne in steam.

Dry vs. wet sauna and how to replicate the protocol at home

Bryan’s team chose a dry Finnish-style sauna at 200°F with 10–20 percent humidity. This style has the strongest research backing. Wet or infrared saunas can still provide benefit, but often don’t reach therapeutic heat levels.

His at-home protocol is:

20 minutes at 200°F
Every day or nearly every day
Ice packs on sensitive areas
Electrolyte hydration before and after
Immediate shower after to wash off toxins

Anyone can start this protocol with modifications. The key is to ease in slowly. Start with 140°F, limit sessions to 2 to 3 per week, and gradually build up.

Who should avoid sauna use?

Bryan’s team flagged several populations who should proceed with caution:

Pregnant individuals
People with unmanaged cardiovascular conditions
Those with electrolyte disorders or dizziness-prone conditions like POTS

Always consult a physician before starting an intense heat therapy protocol.

Sauna and the broader longevity mission

Bryan frames his sauna protocol as more than health optimization. It is part of a broader movement to reduce death in all its forms and extend human potential. The Don’t Die mission is to reject default aging and experiment with new systems of living that improve vitality, brain function, and emotional wellbeing.

Final Thoughts

Bryan Johnson’s sauna protocol isn’t for the faint of heart, but the early results are compelling. From a drop in blood pressure to signs of toxin elimination and increased heat shock protein activity, 20-minute dry sauna sessions may offer one of the simplest, most accessible longevity interventions available today. Whether you’re optimizing for cardiovascular health, brain performance, or detoxification, sauna might be your next great protocol.

🩺 Disclaimer

🚀 Get Started with Blueprint

Start optimizing your health today with $25 off your first order! Use our referral code to begin your Blueprint journey and take control of your longevity.