The 24-Hour System
The 24-Hour Body: Why a Stack Is Not a System
Most performance problems are not problems with a moment. They are problems with a day that has lost its shape. The case for treating the twenty-four-hour cycle as a single...
The 24-Hour System
Circadian Amplitude and the 2026 World Cup
England based their entire World Cup in one city to keep the body clock steady. Their match map reveals the one circadian variable that base-camp planning can't touch, and why...
The 24-Hour System
The Four Behaviours That Change Everything
A study published earlier this year in SLEEP followed 38,838 adults and asked what behaviours most reliably improve cardiorespiratory fitness and parasympathetic activity. The answer was four: morning sunlight exposure,...
Environment
The Employee-Centred Office: Scientific Evidence and Design Principles for a High-Performance Workplace
The modern office is no longer a default place to sit. From an employee perspective, it is a performance environment. People come to the office to think clearly, collaborate effectively,...
The 24-Hour System
The Amplitude Problem: Why Your Clock Can Be Running But Not Working
Most high performers think they have an energy problem. They don't. They have an amplitude problem. Your circadian clock may be running, but if it's running weakly, the peaks are...
The 24-Hour System
The Biology Of Timing
Sleep isn’t just recovery, it’s regulation.You can be getting 7–9 hours a night, but if your timing is inconsistent, the biological impact is significant. This piece explores why circadian alignment, ...
The 24-Hour System
The Problem With Being Right Too Early
Most people don’t have an energy problem.They have a rhythm problem. Modern life has created a state of constant physiological noise — irregular light exposure, poor sleep timing, ongoing cognitive...
The 24-Hour System
What Is Wellness?
Wellness is often mistaken for self-care, fitness, or lifestyle upgrades. In reality, wellness is an active movement toward improved functioning, resilience, and meaningful engagement with life. This piece reframes wellness...
The 24-Hour System
The HMN24 Core Range: A Circadian-Aligned Performance System
The HMN24 Core Range supports the body’s natural circadian rhythm to enhance cognitive clarity, sustained focus, emotional regulation, and sleep quality. Rather than stimulating or sedating, the formulations reinforce the...
The 24-Hour System
Why Circadian Rhythm May Be Central to Protecting the Brain
Disrupted circadian rhythms are not just a side-effect of Alzheimer’s, they may play a direct role in its development. Recent research shows that when the brain’s internal clocks fall out...
The 24-Hour System
Chronological Anxiety
There are a lot of things we do in a day that are anxiety inducing and if we're to achieve balance with our nervous systems, minimise stress and improve...
The 24-Hour System
Professional Football and Chronobiology
In a recent Podcast, HMN24 Co-Founder Phil Learney was asked about the implications of sleep-wake disruption on professional footballers and what an adjusted schedule may look like and how HMN24...












