Journal

Longevity, plainly explained.

Our knowledge base for living a better, healthier, longer life — inspired by The Art of Longevity. Evidence-based articles on sleep, nutrition, movement, stress, recovery and the mind.

Overcoming the Afternoon Slump: The Power of a Fixed Wake Time

Sleep & energy

Overcoming the Afternoon Slump: The Power of a Fixed Wake Time

Discover how homeostatic sleep drive causes afternoon fatigue and why setting a consistent morning alarm helps stabilize your daily energy.

2 min · August 31, 2026

HRV as a Daily Compass: How to Guide Recovery Without Obsession

Stress & mind

HRV as a Daily Compass: How to Guide Recovery Without Obsession

Heart rate variability offers an insightful window into your autonomic nervous system. Learn how to use this marker to guide stress and recovery decisions without getting trapped in metric anxiety.

5 min · August 26, 2026

What Continuous Glucose Data Teaches Us About Daily Eating

Nutrition

What Continuous Glucose Data Teaches Us About Daily Eating

Continuous glucose data has reshaped our understanding of metabolic health. Here is how daily glucose variability impacts energy, longevity markers, and everyday nutrition choices.

5 min · August 25, 2026

40 Hz gamma stimulation: 69% less brain volume loss in a 6-month trial in Alzheimer's disease

Brain & memory

40 Hz gamma stimulation: 69% less brain volume loss in a 6-month trial in Alzheimer's disease

What 40 Hz gamma stimulation is, how "gamma music" is built, what the human trials actually showed — and how to use a 40 Hz album like Gamma Focus 25 in practice.

11 min · August 24, 2026

Zone 2 Training: The Low-Glamour Habit With an Outsized Payoff

Movement & strength

Zone 2 Training: The Low-Glamour Habit With an Outsized Payoff

Building mitochondrial capacity through low-intensity exercise offers a powerful, evidence-backed foundation for long-term metabolic flexibility and cardiovascular health.

5 min · August 24, 2026

Light, Temperature, and Timing: The Three Levers of Sleep Quality

Sleep & energy

Light, Temperature, and Timing: The Three Levers of Sleep Quality

Discover how light exposure, thermal regulation, and circadian timing work together to deepen sleep, boost daylight energy, and support long-term metabolic health.

5 min · August 23, 2026

Decoding Resting Heart Rate and HRV: Your Daily Heart Readout

Heart & metabolic health

Decoding Resting Heart Rate and HRV: Your Daily Heart Readout

Resting heart rate and heart rate variability offer a real-time window into autonomic stress and cardiac efficiency. Here is how to interpret these daily markers to support long-term health.

5 min · August 19, 2026

40 Hz Gamma Stimulation and Brain Health: Science vs. Hype

Brain & memory

40 Hz Gamma Stimulation and Brain Health: Science vs. Hype

Flickering light and rhythmic sound at 40 Hz trigger intriguing brain mechanics. Here is what current research demonstrates—and where expectations must remain grounded.

4 min · August 16, 2026

VO2max: The Physiology of Cardiorespiratory Fitness and Longevity

Longevity foundations

VO2max: The Physiology of Cardiorespiratory Fitness and Longevity

Cardiorespiratory fitness offers an unparalleled window into systemic physiological function. Here is how oxygen transport shapes your long-term health profile and how to optimize it.

5 min · August 15, 2026

Menopause and Long-Term Health: Biology, Risk, and Strategy

Menopause & hormonal health

Menopause and Long-Term Health: Biology, Risk, and Strategy

The biological shift during menopause affects cardiovascular, bone, and metabolic systems. Science reveals evidence-based strategies to support long-term health.

7 min · August 14, 2026

Protein, Fibre, and Food Quality: The Core Nutrition Levers

Nutrition

Protein, Fibre, and Food Quality: The Core Nutrition Levers

Navigating nutrition does not require total complexity. Focusing on protein sufficiency, intact fibre, and food matrix quality provides the highest leverage for long-term health.

8 min · August 14, 2026

Strength After 40: Muscle Mass as the Currency of Independence

Movement & strength

Strength After 40: Muscle Mass as the Currency of Independence

Skeletal muscle is far more than tissue for movement—it is a critical metabolic reservoir. Here is how maintaining strength after age 40 supports long-term health and functional autonomy.

8 min · August 14, 2026

The Architecture of Sleep: How Deep and REM Sleep Support the Body

Sleep & energy

The Architecture of Sleep: How Deep and REM Sleep Support the Body

Sleep is an active biological workflow. Discover how deep sleep and REM stage architecture clear cellular waste, support cognition, and rebuild systemic strength.

7 min · August 14, 2026

What Moves the Needle on Healthspan: Evidence-Based Habits

Longevity foundations

What Moves the Needle on Healthspan: Evidence-Based Habits

Amid the noise of modern wellness trends, a small set of foundational habits drives the vast majority of long-term healthspan. Here is what the science shows—and how to apply it.

7 min · August 14, 2026

Building Cognitive Reserve: How Daily Habits Support Memory Over Decades

Brain & memory

Building Cognitive Reserve: How Daily Habits Support Memory Over Decades

Cognitive reserve allows the brain to adapt and maintain function despite normal aging. Discover the underlying mechanisms and daily actions that strengthen neural resilience.

8 min · August 14, 2026

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