Your body runs on internal clocks that regulate everything from hormone release to DNA repair. Misalign these clocks, and you accelerate aging. Optimize them, and you unlock superhuman energy and longevity.

📖 Learn about circadian rhythms on Wikipedia →

🕐 What Are Biological Clocks?

You have not one, but trillions of biological clocks:

These clocks control:

⚠️ What Happens When Clocks Break

Circadian disruption is deadly. Research shows shift workers have:

Even mild misalignment (staying up past midnight, eating late, inconsistent sleep schedule) damages your clocks.

Nobel Prize (2017): Jeffrey Hall, Michael Rosbash, and Michael Young won for discovering the molecular mechanisms of circadian rhythms. Learn more →

🇨🇭 Swiss Circadian Research

Switzerland is a global leader in chronobiology:

⏰ The Swiss Advantage: Light Exposure

Switzerland's unique light environment affects your clocks:

Summer (May-Aug)

Winter (Nov-Feb)

Altitude Effects

Higher UV at altitude (St. Moritz, Zermatt) = stronger circadian signal. Mountain living may optimize clock function!

🔬 Bryan Johnson's Clock Protocol

Bryan Johnson obsesses over circadian optimization:

  1. Wake time: 5:00 AM every day (even weekends — consistency is king)
  2. Morning light: 10,000+ lux within 30 min of waking (outdoor walk or light therapy box)
  3. No blue light after 6 PM (orange glasses, no screens)
  4. Dinner before 5 PM (align eating with daytime metabolism)
  5. Bedtime: 8:30 PM (targets 8.5 hours sleep)
  6. Room temp: 66-68°F (19-20°C) for sleep
  7. Darkness: 100% blackout (no LEDs, tape over all lights)

🇨🇭 Swiss Clock Optimization Protocol

Morning (6-9 AM)

  1. Wake at same time daily: 6:00-7:00 AM (even weekends)
  2. Get outside ASAP: 15-30 min morning walk (even overcast Swiss winter days = 10,000 lux)
  3. Alternative: Light therapy lamp (Beurer TL 90, Philips HF3419) - CHF 100-200 at Interdiscount/Digitec
  4. Coffee timing: Wait 90 min after waking (let cortisol peak naturally)
  5. Breakfast: Protein-rich meal within 1 hour of waking

Daytime (9 AM - 5 PM)

  1. Bright light exposure: Work near windows, outdoor lunch break
  2. Exercise: Before 3 PM (later workouts can delay sleep)
  3. Meals: Stop eating by 5-6 PM (12-14 hour overnight fast)

Evening (5-9 PM)

  1. Dim lights: Lower brightness after sunset
  2. Blue light blocking: Orange glasses (Swanwick, Uvex) after 7 PM - CHF 30-80
  3. Screen filters: f.lux (computer), Night Shift (iPhone), Night Mode (Android)
  4. No exercise: Raises core temp + cortisol
  5. Cool down: Lower room temp to 18-19°C

Night (9 PM - 6 AM)

  1. Darkness: 100% blackout curtains (or sleep mask)
  2. No LEDs: Tape over alarm clock, router, chargers
  3. Cool temp: 16-18°C optimal
  4. No bathroom light: Use red nightlight if needed

📊 Testing Your Circadian Rhythm

Chronotype Test (Free)

Are you a morning lark or night owl? Take the Munich ChronoType Questionnaire (MCTQ) online.

Take the test →

Dim Light Melatonin Onset (DLMO) Test

Gold standard for measuring circadian phase. Measures when melatonin starts rising in evening (should be ~8-9 PM).

Where to test in Switzerland:

Wearables

💊 Supplements for Clock Health

Melatonin (Timing is Critical)

Magnesium Glycinate

Glycine

Vitamin D3

🚫 Clock Disruptors to Avoid

  1. Social jetlag: Sleeping in on weekends (even 2 hours later damages clocks)
  2. Late eating: Dinner after 8 PM confuses liver/gut clocks
  3. Alcohol: Fragments sleep, blocks REM, raises core temp
  4. Caffeine after 2 PM: Half-life is 5-6 hours (coffee at 3 PM = still active at 9 PM)
  5. Blue light at night: Suppresses melatonin for 2-3 hours
  6. Overnight flights: Jet lag = forced circadian desynchrony (see recovery protocol below)

✈️ Swiss Jet Lag Protocol

Switzerland's central location means frequent travel = jet lag risk.

Eastward Travel (harder — shortening your day)

Example: Zurich → Tokyo (+8 hours)

  1. Before flight: Wake earlier by 1-2 hours for 3 days
  2. During flight: Set watch to destination time, eat on destination schedule
  3. Arrival day: Morning light exposure ASAP (forces clock shift)
  4. Evening: Dim lights, melatonin 0.5 mg at 9 PM local time
  5. Adaptation: 3-4 days to fully sync

Westward Travel (easier — lengthening your day)

Example: Zurich → New York (-6 hours)

  1. Before flight: Stay up later by 1-2 hours for 3 days
  2. Arrival: Get evening light (delays clock)
  3. No melatonin (you want to delay, not advance)
  4. Adaptation: 2-3 days

🔬 Advanced: Clock Gene Testing

Genetic variants in clock genes (PER3, CLOCK) influence:

Where to test in Switzerland: See DNA/Genetic Testing section in Resources.

📚 Research References

✅ Next Steps

  1. Track your sleep: Get Oura Ring or WHOOP - measure baseline
  2. Fix wake time: Same time every day (even weekends) for 2 weeks
  3. Morning light: 15-30 min outdoor walk within 1 hour of waking
  4. Stop eating by 6 PM: Give your gut/liver clocks a break
  5. Orange glasses after 7 PM: Cheap, effective blue light blocker
  6. Blackout bedroom: 100% darkness (or sleep mask)
  7. Test chronotype: MCTQ online quiz
  8. Consider DLMO test: If you suspect delayed sleep phase

🛠️ Tools & Resources