The archive

Research, reviews, and guides for better sleep.

This is the main reading archive for Look What I Dig, with articles on sleep products, supplements, routines, and the occasional bridge into productivity and biohacking.

Biohacking

Tart Cherry Juice for Sleep and Recovery: What the Research Shows

May 18, 2026 · 4 min read

Tart cherry juice as a natural sleep aid and recovery tool. The melatonin and anti-inflammatory compounds behind its benefits, dosing protocols, and product recommendations.

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Biohacking

Grounding (Earthing): Hype or Legitimate Health Practice?

May 18, 2026 · 3 min read

The science behind grounding (earthing). Separating the hype from legitimate research on electrical charge, inflammation reduction, and health effects.

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Biohacking

Morning Sunlight Exposure: 10 Minutes That Changes Your Day

May 18, 2026 · 3 min read

Why 10 minutes of morning sunlight is one of the highest-ROI health habits you can adopt. Circadian science, cortisol regulation, and how to implement it.

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Biohacking

Zone 2 Cardio: The Fat-Burning Heart Rate Zone Explained

May 18, 2026 · 3 min read

Zone 2 cardio explained: the science behind low-intensity steady-state training, why it's optimal for fat burning and mitochondrial health, and how to implement it.

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Biohacking

Wim Hof Method: Science of Cold Exposure and Breathwork

May 18, 2026 · 3 min read

The science behind the Wim Hof Method. How cold exposure and controlled breathing affect your immune system, stress response, and mental resilience.

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Productivity

When to Drink Coffee: Timing Your Caffeine for Peak Performance

May 18, 2026 · 3 min read

The science-backed optimal coffee schedule. Why you shouldn't drink coffee immediately upon waking, the cortisol-caffeine interaction, and timing for peak performance without sleep disruption.

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Productivity

The 5 AM Morning Routine: Science-Based Habits

May 18, 2026 · 4 min read

A science-based 5 AM morning routine optimized for energy, focus, and productivity. How to transition from night owl to early riser without burning out.

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Productivity

Digital Minimalism: Reclaim Your Attention

May 18, 2026 · 3 min read

A 30-day digital declutter to break the dopamine loop and reclaim your attention. How to reintroduce technology intentionally and replace screen time with high-quality leisure.

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Productivity

Deep Work: How to Focus in a Distracted World

May 18, 2026 · 3 min read

How to cultivate deep focus in a distracted world. The science of attention, four proven deep work strategies, and a step-by-step ritual for building concentration.

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Sleep

Best Air Purifier for Sleep: 2026 Buyer’s Guide

May 18, 2026 · 3 min read

The best air purifiers for sleep tested and ranked. What to look for, what to avoid, and the top picks for 2026 based on filtration performance and noise levels.

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