Sleep medicine & IHHT

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Sleep medicine & IHHT

Sleep medicine

Sleep medicine is an interdisciplinary field that deals with the diagnosis, treatment and prevention of sleep disorders. It involves neurology, pneumology, psychiatry, ENT and internal medicine, among others.

What does sleep medicine investigate?

It deals with:

  • Sleep quality & sleep duration
  • Sleep-wake rhythm
  • Breathing during sleep
  • Movement disorders
  • psychological factors
  • Daytime tiredness & performance

Frequent sleep disorders:

1. insomnia (difficulty falling asleep and staying asleep)

  • Most common sleep disorder
  • Causes: stress, psychological strain, pain
  • Therapy: sleep hygiene, cognitive behavioral therapy, medication if necessary

2️. Sleep apnea

  • Interrupted breathing during sleep
  • Symptoms: snoring, daytime sleepiness
  • Therapy: CPAP mask, weight reduction

3️. Restless legs syndrome

  • Unpleasant pulling in the legs
  • Urge to move in the evening/at night

4️. Narcolepsy

  • Uncontrollable sleep attacks
  • Rare neurological disease

Diagnostics in sleep medicine

Outpatient: Polygraphy (screening for sleep apnea)

Measurement of:

  • Eye movements
  • Muscle tension
  • Breathing
  • Heart rate
  • Oxygen saturation

If necessary, a polysomnography (sleep laboratory) is carried out for further clarification

Forms of therapy:

  • Behavioral therapy (CBT-I for insomnia)
  • CPAP therapy
  • Drug treatment
  • Light therapy (for arrhythmia)
  • Weight management
  • Treatment of underlying diseases

Why is sleep so important?

Sleep is essential for regeneration and prevention of:

  • Cardiovascular diseases
  • Depression
  • Diabetes
  • Concentration & memory problems
  • Immunodeficiency

IHHT as a biohack for sleep optimization

IHHT (interval hypoxia-hyperoxia therapy) is a method in which you alternately breathe in oxygen-poor (hypoxia) and oxygen-rich air (hyperoxia) through a mask.
Goal in the biohacking context: stimulate mitochondria, improve cell energy and optimize autonomic regulation – which should indirectly support sleep.

The basic idea behind IHHT:

  • Hypoxia → mild “stress stimulus” (hormesis)
  • Activation of hypoxia signaling pathways (e.g. HIF-1α)
  • Promotion of mitochondrial adaptation processes
  • Improvement of oxygen utilization
  • Possible increase in HRV (heart rate variability)

Biohackers argue:
👉 Better mitochondrial function = more stable energy during the day = more natural sleep pressure in the evening.

How is IHHT supposed to improve sleep?

1️⃣ Autonomic nervous system regulation
→ More parasympathetic activity

2️⃣ Improve HRV
→ Better night-time regeneration

3️⃣ Reduce inflammation and oxidative stress

4️⃣ Reduce daytime tiredness (indirect effect)

Should always be done under medical supervision.

Useful for:

  • Chronic fatigue (e.g. long Covid)
  • Stress dysregulation (burn-out syndrome)
  • Functional mitochondrial weakness (energy deficiency)
  • classic insomnia
  • circadian rhythm disturbances

IHHT can be a systemic performance and regeneration biohack.