Jorn Kirkels
@jornkirkels.bsky.social
Helped 400+ type-A entrepreneurs achieve peak performance without sacrificing their health
Founder @ Cellular Performance
Founder @ Cellular Performance
Most entrepreneurs end their days mentally drained, overwhelmed, and struggling to recover.
I just hit 7 consecutive days of Exceptional Resilience in OURA whilst managing 28 active clients.
Here are the 5 unusual habits that allowed me to achieve this:
I just hit 7 consecutive days of Exceptional Resilience in OURA whilst managing 28 active clients.
Here are the 5 unusual habits that allowed me to achieve this:
October 2, 2025 at 6:04 AM
Most entrepreneurs end their days mentally drained, overwhelmed, and struggling to recover.
I just hit 7 consecutive days of Exceptional Resilience in OURA whilst managing 28 active clients.
Here are the 5 unusual habits that allowed me to achieve this:
I just hit 7 consecutive days of Exceptional Resilience in OURA whilst managing 28 active clients.
Here are the 5 unusual habits that allowed me to achieve this:
Have you ever heard people talking about how Europeans can eat pizza and pasta more freely without gaining weight?
Take a look at this graph:
Europeans almost eat the same amount of calories as Americans.
Take a look at this graph:
Europeans almost eat the same amount of calories as Americans.
March 29, 2025 at 5:30 AM
Have you ever heard people talking about how Europeans can eat pizza and pasta more freely without gaining weight?
Take a look at this graph:
Europeans almost eat the same amount of calories as Americans.
Take a look at this graph:
Europeans almost eat the same amount of calories as Americans.
Here's why you don't feel any noticeable difference with most supplements that you are taking:
Your body just doesn't absorb them.
But it's not because there's something wrong with you or the supplement itself
It's because you're taking them at the WRONG TIME of day...
Your body just doesn't absorb them.
But it's not because there's something wrong with you or the supplement itself
It's because you're taking them at the WRONG TIME of day...
March 27, 2025 at 10:00 AM
Here's why you don't feel any noticeable difference with most supplements that you are taking:
Your body just doesn't absorb them.
But it's not because there's something wrong with you or the supplement itself
It's because you're taking them at the WRONG TIME of day...
Your body just doesn't absorb them.
But it's not because there's something wrong with you or the supplement itself
It's because you're taking them at the WRONG TIME of day...
This is what happens to your brain if you spend more than 2 hours per day on your phone:
Do you see those red areas in the brain image?
Those are physical rewirings in your brain because of high screentime.
But here's what's even more horrifying:
Do you see those red areas in the brain image?
Those are physical rewirings in your brain because of high screentime.
But here's what's even more horrifying:
March 26, 2025 at 8:00 AM
This is what happens to your brain if you spend more than 2 hours per day on your phone:
Do you see those red areas in the brain image?
Those are physical rewirings in your brain because of high screentime.
But here's what's even more horrifying:
Do you see those red areas in the brain image?
Those are physical rewirings in your brain because of high screentime.
But here's what's even more horrifying:
Ever thought that just having a few drinks doesn't have an impact your performance?
This is my client's data after only ONE night of drinking:
This is my client's data after only ONE night of drinking:
March 24, 2025 at 2:15 PM
Ever thought that just having a few drinks doesn't have an impact your performance?
This is my client's data after only ONE night of drinking:
This is my client's data after only ONE night of drinking:
If you wear a smart watch to track your performance, you are actually poisoning yourself
But it is not necessary the technology itself that is toxic...
A Notre Dame study found that 15 out of 22 smartwatch bands contain damaging high levels of PFAS.
But it is not necessary the technology itself that is toxic...
A Notre Dame study found that 15 out of 22 smartwatch bands contain damaging high levels of PFAS.
March 23, 2025 at 1:13 PM
If you wear a smart watch to track your performance, you are actually poisoning yourself
But it is not necessary the technology itself that is toxic...
A Notre Dame study found that 15 out of 22 smartwatch bands contain damaging high levels of PFAS.
But it is not necessary the technology itself that is toxic...
A Notre Dame study found that 15 out of 22 smartwatch bands contain damaging high levels of PFAS.
Most people think creatine just for bodybuilders trying to gain muscle.
But a new study (PMID: 38418482) shows that it also does something unexpected to your brain, which has led to many entrepreneurs using it.
Check out this graph:
But a new study (PMID: 38418482) shows that it also does something unexpected to your brain, which has led to many entrepreneurs using it.
Check out this graph:
March 17, 2025 at 10:29 AM
Most people think creatine just for bodybuilders trying to gain muscle.
But a new study (PMID: 38418482) shows that it also does something unexpected to your brain, which has led to many entrepreneurs using it.
Check out this graph:
But a new study (PMID: 38418482) shows that it also does something unexpected to your brain, which has led to many entrepreneurs using it.
Check out this graph:
Alex Becker built his €50M+ business in an empty apartment with only a standing desk and a bed.
I copied his extreme minimalist setup for 180 days.
Here are 9 "environment" hacks I implemented from Alex Becker that drastically improved my productivity:
I copied his extreme minimalist setup for 180 days.
Here are 9 "environment" hacks I implemented from Alex Becker that drastically improved my productivity:
January 23, 2025 at 3:04 PM
Alex Becker built his €50M+ business in an empty apartment with only a standing desk and a bed.
I copied his extreme minimalist setup for 180 days.
Here are 9 "environment" hacks I implemented from Alex Becker that drastically improved my productivity:
I copied his extreme minimalist setup for 180 days.
Here are 9 "environment" hacks I implemented from Alex Becker that drastically improved my productivity:
Are you gaining unwanted weight because of stress?
Here are 5 tiny mistakes I discovered while tracking the data of over 400 entrepreneurs that lead to rapid weight gain:
Here are 5 tiny mistakes I discovered while tracking the data of over 400 entrepreneurs that lead to rapid weight gain:
January 20, 2025 at 10:00 AM
Are you gaining unwanted weight because of stress?
Here are 5 tiny mistakes I discovered while tracking the data of over 400 entrepreneurs that lead to rapid weight gain:
Here are 5 tiny mistakes I discovered while tracking the data of over 400 entrepreneurs that lead to rapid weight gain:
Quick hack to fall asleep faster:
Your body has 361 pressure points.
Pressure on these points = relaxation.
Using an acupressure mat you can easily trigger these points which "force" your body to relax.
I use it in combination with stoic quotes 15 minutes before bed.
Your body has 361 pressure points.
Pressure on these points = relaxation.
Using an acupressure mat you can easily trigger these points which "force" your body to relax.
I use it in combination with stoic quotes 15 minutes before bed.
January 19, 2025 at 5:30 AM
Quick hack to fall asleep faster:
Your body has 361 pressure points.
Pressure on these points = relaxation.
Using an acupressure mat you can easily trigger these points which "force" your body to relax.
I use it in combination with stoic quotes 15 minutes before bed.
Your body has 361 pressure points.
Pressure on these points = relaxation.
Using an acupressure mat you can easily trigger these points which "force" your body to relax.
I use it in combination with stoic quotes 15 minutes before bed.
Jordan Peterson cured his autoimmune disease in 60 days by eating only meat.
He also mentioned that his energy went through the roof.
I decided to try this controversial diet for 90 days.
Here are 4 shocking benefits I experienced (and a warning I wish I'd known):
He also mentioned that his energy went through the roof.
I decided to try this controversial diet for 90 days.
Here are 4 shocking benefits I experienced (and a warning I wish I'd known):
January 18, 2025 at 11:57 AM
Jordan Peterson cured his autoimmune disease in 60 days by eating only meat.
He also mentioned that his energy went through the roof.
I decided to try this controversial diet for 90 days.
Here are 4 shocking benefits I experienced (and a warning I wish I'd known):
He also mentioned that his energy went through the roof.
I decided to try this controversial diet for 90 days.
Here are 4 shocking benefits I experienced (and a warning I wish I'd known):
Everyone's obsessed with Bryan Johnson's €2M longevity protocol.
But no one is talking about Siim Land, who achieves similar results spending less than €100K a year.
I watched 100 hours of Siim's YouTube videos to uncover his secret.
Here's his simple 5-step system:
But no one is talking about Siim Land, who achieves similar results spending less than €100K a year.
I watched 100 hours of Siim's YouTube videos to uncover his secret.
Here's his simple 5-step system:
January 16, 2025 at 7:07 AM
Everyone's obsessed with Bryan Johnson's €2M longevity protocol.
But no one is talking about Siim Land, who achieves similar results spending less than €100K a year.
I watched 100 hours of Siim's YouTube videos to uncover his secret.
Here's his simple 5-step system:
But no one is talking about Siim Land, who achieves similar results spending less than €100K a year.
I watched 100 hours of Siim's YouTube videos to uncover his secret.
Here's his simple 5-step system:
Bryan Johnson spends €2M/year on health optimisation tech
I spent 180 days testing most of these devices with 100+ clients and analysing their data.
Here are 12 products I found that are actually worth your money (which are under €250):
I spent 180 days testing most of these devices with 100+ clients and analysing their data.
Here are 12 products I found that are actually worth your money (which are under €250):
January 13, 2025 at 7:32 AM
Bryan Johnson spends €2M/year on health optimisation tech
I spent 180 days testing most of these devices with 100+ clients and analysing their data.
Here are 12 products I found that are actually worth your money (which are under €250):
I spent 180 days testing most of these devices with 100+ clients and analysing their data.
Here are 12 products I found that are actually worth your money (which are under €250):
I used to drink 6 cups of coffee daily just to function normally
I thought coffee was healthy until my health data revealed the shocking truth about its effects on my body
I decided to quit
Here are 3 shocking changes after 365 days of no coffee (and it's impact on my data):
I thought coffee was healthy until my health data revealed the shocking truth about its effects on my body
I decided to quit
Here are 3 shocking changes after 365 days of no coffee (and it's impact on my data):
January 11, 2025 at 6:18 AM
I used to drink 6 cups of coffee daily just to function normally
I thought coffee was healthy until my health data revealed the shocking truth about its effects on my body
I decided to quit
Here are 3 shocking changes after 365 days of no coffee (and it's impact on my data):
I thought coffee was healthy until my health data revealed the shocking truth about its effects on my body
I decided to quit
Here are 3 shocking changes after 365 days of no coffee (and it's impact on my data):
Those who know, know. 😂
January 9, 2025 at 11:25 AM
Those who know, know. 😂
The self-development trap:
More = better
This works in the beginning
...until there's a tipping point where "more" becomes the thing holding you back.
Then it's about doing less, better.
Here are 6 "micro-decisions" that helped me achieve more by doing less:
More = better
This works in the beginning
...until there's a tipping point where "more" becomes the thing holding you back.
Then it's about doing less, better.
Here are 6 "micro-decisions" that helped me achieve more by doing less:
January 3, 2025 at 5:30 AM
The self-development trap:
More = better
This works in the beginning
...until there's a tipping point where "more" becomes the thing holding you back.
Then it's about doing less, better.
Here are 6 "micro-decisions" that helped me achieve more by doing less:
More = better
This works in the beginning
...until there's a tipping point where "more" becomes the thing holding you back.
Then it's about doing less, better.
Here are 6 "micro-decisions" that helped me achieve more by doing less:
If you can't think clearly after eating a meal, this 'hidden' ingredient might be causing it:
Food companies know you avoid "sugar" on labels.
That's why they came up with 61+ different names for the same thing.
Avoid anything ending in "-ose" or that is a "syrup"
Food companies know you avoid "sugar" on labels.
That's why they came up with 61+ different names for the same thing.
Avoid anything ending in "-ose" or that is a "syrup"
January 3, 2025 at 3:00 AM
If you can't think clearly after eating a meal, this 'hidden' ingredient might be causing it:
Food companies know you avoid "sugar" on labels.
That's why they came up with 61+ different names for the same thing.
Avoid anything ending in "-ose" or that is a "syrup"
Food companies know you avoid "sugar" on labels.
That's why they came up with 61+ different names for the same thing.
Avoid anything ending in "-ose" or that is a "syrup"
I've tracked the productivity data of more than 400 entrepreneurs, here's a sneaky little hack we found for sustained focus:
Use a "dopamine delay" system
Apps that "delay" access (to dopamine).
I use:
· OneSec
· ScreenZen
You can still open the apps, but you have to wait.
Use a "dopamine delay" system
Apps that "delay" access (to dopamine).
I use:
· OneSec
· ScreenZen
You can still open the apps, but you have to wait.
January 2, 2025 at 7:00 PM
I've tracked the productivity data of more than 400 entrepreneurs, here's a sneaky little hack we found for sustained focus:
Use a "dopamine delay" system
Apps that "delay" access (to dopamine).
I use:
· OneSec
· ScreenZen
You can still open the apps, but you have to wait.
Use a "dopamine delay" system
Apps that "delay" access (to dopamine).
I use:
· OneSec
· ScreenZen
You can still open the apps, but you have to wait.
If you can't "switch off" in the evening despite feeling exhausted, here's what you need to know:
Your body works like an engine. If you floor the gas for too hard, it breaks.
Here are 3 simple hacks to repair your engine (so you can relax again):
Your body works like an engine. If you floor the gas for too hard, it breaks.
Here are 3 simple hacks to repair your engine (so you can relax again):
January 2, 2025 at 10:00 AM
If you can't "switch off" in the evening despite feeling exhausted, here's what you need to know:
Your body works like an engine. If you floor the gas for too hard, it breaks.
Here are 3 simple hacks to repair your engine (so you can relax again):
Your body works like an engine. If you floor the gas for too hard, it breaks.
Here are 3 simple hacks to repair your engine (so you can relax again):
Weird life hack:
Modulate your audio to different activities.
...this affects your dopamine and cortisol levels.
Here's how I do it:
Morning routine = speeches
Work = 40hz binaural beats
Evening = affirmations
Workouts = music
Little things like this compound.
Modulate your audio to different activities.
...this affects your dopamine and cortisol levels.
Here's how I do it:
Morning routine = speeches
Work = 40hz binaural beats
Evening = affirmations
Workouts = music
Little things like this compound.
January 2, 2025 at 6:14 AM
Weird life hack:
Modulate your audio to different activities.
...this affects your dopamine and cortisol levels.
Here's how I do it:
Morning routine = speeches
Work = 40hz binaural beats
Evening = affirmations
Workouts = music
Little things like this compound.
Modulate your audio to different activities.
...this affects your dopamine and cortisol levels.
Here's how I do it:
Morning routine = speeches
Work = 40hz binaural beats
Evening = affirmations
Workouts = music
Little things like this compound.
Can't focus because of brain-fog? I feel you.
In the past years I discovered some "hidden ingredients" that I ate daily, which hijacked my ability to think in the afternoons.
Here are the 7 "hidden ingredients" that caused my brain fog (that most people eat every day):
In the past years I discovered some "hidden ingredients" that I ate daily, which hijacked my ability to think in the afternoons.
Here are the 7 "hidden ingredients" that caused my brain fog (that most people eat every day):
January 1, 2025 at 2:15 PM
Can't focus because of brain-fog? I feel you.
In the past years I discovered some "hidden ingredients" that I ate daily, which hijacked my ability to think in the afternoons.
Here are the 7 "hidden ingredients" that caused my brain fog (that most people eat every day):
In the past years I discovered some "hidden ingredients" that I ate daily, which hijacked my ability to think in the afternoons.
Here are the 7 "hidden ingredients" that caused my brain fog (that most people eat every day):
This weird recently discovered method is helping entrepreneurs do in 4 hours what previously took a full day:
December 31, 2024 at 7:16 AM
This weird recently discovered method is helping entrepreneurs do in 4 hours what previously took a full day:
Most "biohacking" is BS.
99% of entrepreneurs waste their time watching endless self-optimisation videos with no results.
In the past 4 years, I've worked with over 400 entrepreneurs to optimise their performance.
Here are the 7 "biohacks" I found that actually do work:
99% of entrepreneurs waste their time watching endless self-optimisation videos with no results.
In the past 4 years, I've worked with over 400 entrepreneurs to optimise their performance.
Here are the 7 "biohacks" I found that actually do work:
December 30, 2024 at 8:22 AM
Most "biohacking" is BS.
99% of entrepreneurs waste their time watching endless self-optimisation videos with no results.
In the past 4 years, I've worked with over 400 entrepreneurs to optimise their performance.
Here are the 7 "biohacks" I found that actually do work:
99% of entrepreneurs waste their time watching endless self-optimisation videos with no results.
In the past 4 years, I've worked with over 400 entrepreneurs to optimise their performance.
Here are the 7 "biohacks" I found that actually do work:
Most "biohacking" is BS.
99% of entrepreneurs waste their time watching endless self-optimisation videos with no results.
In the past 4 years, I've worked with over 400 entrepreneurs to optimise their performance.
Here are the 7 "biohacks" I found that actually do work:
99% of entrepreneurs waste their time watching endless self-optimisation videos with no results.
In the past 4 years, I've worked with over 400 entrepreneurs to optimise their performance.
Here are the 7 "biohacks" I found that actually do work:
December 30, 2024 at 8:10 AM
Most "biohacking" is BS.
99% of entrepreneurs waste their time watching endless self-optimisation videos with no results.
In the past 4 years, I've worked with over 400 entrepreneurs to optimise their performance.
Here are the 7 "biohacks" I found that actually do work:
99% of entrepreneurs waste their time watching endless self-optimisation videos with no results.
In the past 4 years, I've worked with over 400 entrepreneurs to optimise their performance.
Here are the 7 "biohacks" I found that actually do work:
The #1 mistake most make when trying to wake-up energised:
Using a regular alarm
Your brain cycles through sleep stages. During REM, your body is paralysed.
Regular alarms = Russian roulette—2/3 chance you'll wake in REM being shocked out of paralysis
Instead, use SleepCycle
Using a regular alarm
Your brain cycles through sleep stages. During REM, your body is paralysed.
Regular alarms = Russian roulette—2/3 chance you'll wake in REM being shocked out of paralysis
Instead, use SleepCycle
December 28, 2024 at 5:45 PM
The #1 mistake most make when trying to wake-up energised:
Using a regular alarm
Your brain cycles through sleep stages. During REM, your body is paralysed.
Regular alarms = Russian roulette—2/3 chance you'll wake in REM being shocked out of paralysis
Instead, use SleepCycle
Using a regular alarm
Your brain cycles through sleep stages. During REM, your body is paralysed.
Regular alarms = Russian roulette—2/3 chance you'll wake in REM being shocked out of paralysis
Instead, use SleepCycle