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Jorn Kirkels
Helped 400+ driven entrepreneurs unlock their perfect diet and routine for boundless energy and laser-focus using data so they don't have to waste their time in endless trial and error.
Jorn Kirkels is the founder of Peak Health System, a company focused on helping entrepreneurs optimize their performance and health.1 He is based in Amsterdam and has a strong presence in the entrepreneurial and health optimization space.12
Professional Background
Jorn Kirkels co-founded Peak Health System with Billy Harris. The company's mission is to empower entrepreneurs to enhance their performance through data-driven approaches. Their flagship product, PeakClub, is described as the number one place in the Netherlands for entrepreneurs to gain insights about productivity, health, and performance.3
Expertise and Approach
Kirkels specializes in helping driven entrepreneurs unlock their potential through personalized diet and routine optimization. He claims to have assisted over 400 entrepreneurs in achieving boundless energy and laser-focus using data-driven methods.4 His approach seems to integrate various aspects of health and performance, including:
- Sleep optimization
- Productivity enhancement
- Health improvement
- Performance maximization
Online Presence
Jorn Kirkels maintains an active online presence across several platforms:
- LinkedIn: His profile can be found under the username "jornkirkels".3
- Twitter: He uses the handle @jorn_kirkels, where he shares insights on peak performance.4
- Skool: Kirkels is active on this platform, having joined in February 2024.12
- Product Hunt: He is listed as one of the makers behind PeakClub.5
Content Creation
In addition to his work with Peak Health System, Kirkels appears to create content related to health optimization. For example, he has written a review on the Oura Ring, focusing on how to optimize deep sleep stages.6
Jorn Kirkels positions himself as an expert in the intersection of entrepreneurship, health, and performance optimization, using data-driven approaches to help business leaders achieve their peak potential.
Highlights
The average person wastes 5 years of their life doom scrolling.
These 5 phone settings will save you years (backed by neuroscience):
- Turn on greyscale
Colours trigger dopamine in your brain, hijacking your focus.
When you view everything in black and white, your phone suddenly becomes less addictive.
It's simple neuroscience.
- Disable notifications
The smartest entrepreneurs I know:
• Turn off notifications • Avoid working from the inbox • Create systems for repetitive tasks
You can't achieve big things with scattered focus.
Be proactive, not reactive.
- Use AppBlock to block apps
80% of the times you check your phone serve no purpose other than distraction.
Here's a game-changer: • Block apps with AppBlock • Schedule focus periods • Delete apps lacking ROI
Once you take control, you'll wonder how you managed before.
- Use OneSec to delay app openings
Another great hack is to use OneSec to delay app openings for the apps you need to use.
This forces you to rethink if you really need to open the app.
I tried it for a week, and my impulsive app checks plummeted instantly.
- Use iOS 18 'hidden apps' feature
Life hack:
Move Instagram and other distracting apps to the new 'hidden' folder on iOS 18.
I cut my weekly Instagram screen time from 4 hours to 1.
5 neuroscience-backed phone settings that will save you decades of mindless scrolling:
- Turn on greyscale
- Disable notifications
- Use AppBlock to block apps
- Use OneSec to delay app openings
- Use iOS 18 'hidden apps' feature
These 7 biohacks will help you grow more muscle than a €150K exercise science degree (without spending hours in the gym):
- Palm Cooling
Palm cooling targets the unique vascular structure in the palms to regulate core temperature and delay heat-induced fatigue.
Research shows significant improvements in training volume and strength with this method.
Use cold packs between sets.
- Red Light Therapy
Red light boosts ATP production and nitric oxide activity, supercharging your cellular engines.
This improves blood flow.
Studies have shown significant increases in muscle hypertrophy, strength, and reduced fatigue with red light exposure.
- Heat-cold Therapy
Alternate heat and cold exposure to hack your growth hormones.
· Upregulates hypertrophy genes · Enhances neuromuscular coordination
Pro tip: 15 min sauna followed by 2 min cold shower post-workout.
Shock your system, increase your gains.
- Super Compensation
You can maximise your gains with strategic overreaching.
Super compensation pushes your body beyond normal limits, triggering enhanced adaptation.
· Implement deload weeks · Increase training volume for 1-2 weeks · Watch your muscles rebound stronger
- Animal > Plant Protein
Animal proteins typically have:
· Higher leucine content (key for muscle protein synthesis) · Better amino acid profile · Superior bioavailability
Pro tip: Mix whey and casein for sustained amino acid release.
- Optimising your microbiome
A healthy microbiome enhances protein absorption, reduces inflammation, and boosts amino acid utilisation.
Hack: Consume diverse fermented foods daily and supplement with targeted probiotics.
Your muscles are only as strong as your gut health.
- Blood Flow Restriction (BFR)
BFR training uses cuffs to restrict blood flow from muscles, leading to faster metabolite build-up and increased muscle fiber recruitment.
This technique promotes effective muscle growth with lighter weights, making it ideal for injury recovery.
7 biohacks that will help you grow muscle without spending unnecessary hours in the gym:
- Palm Cooling
- Red Light Therapy
- Heat-cold Therapy
- Super Compensation
- Animal > Plant Protein
- Optimising your microbiome
- Blood Flow Restriction (BFR)
If this thread saved you time and highlighted high-ROI techniques, share it with a friend looking to optimise their gains.
Then, follow @jornhealth for more cutting-edge biohacks and performance tips.
