How Float Therapy Resets Your Default Mode Network (DMN)

Discover how float therapy resets the Default Mode Network (DMN), reduces mental chatter, and restores clarity. Learn the science behind floating at Omni Space, Saigon.

Giang Hoang

10/9/20252 min read

Understanding the Default Mode Network (DMN)

Have you ever noticed how your mind keeps wandering—rehashing old memories, worrying about the future, replaying conversations? That mental “background noise” is powered by a part of the brain called the Default Mode Network (DMN).

When it’s overactive, the DMN can keep us stuck in cycles of stress, rumination, and anxiety. But in the stillness of float therapy, something remarkable happens: the DMN finally quiets down, giving your brain a chance to reset.

What is the Default Mode Network (DMN)?

The Default Mode Network is a network of brain regions—including the medial prefrontal cortex, posterior cingulate cortex, and angular gyrus—that activates when we are not focused on the outside world.

In everyday life, it’s responsible for:

  • Mind-wandering and daydreaming

  • Self-reflection (sometimes tipping into self-criticism)

  • Time travel of the mind (reliving the past, imagining the future)

  • The “inner narrator” that never stops talking

While the DMN is essential for creativity, empathy, and personal meaning, an overactive DMN is linked to conditions like depression, anxiety, PTSD, and insomnia.

(Sources: Raichle, 2015 – Annual Review of Neuroscience; Harvard Medical School)

How Float Therapy Influences the DMN

In a float session, you’re suspended in warm, silent, zero-gravity water, free from noise, light, and physical pressure. This unique state dramatically reduces sensory input.

Research shows:

  • Reduced DMN activity: fMRI scans suggest that sensory deprivation environments decrease connectivity within the DMN, allowing mental chatter to quiet down.

  • Shift into “flow state”: With the DMN less active, other networks (like task-positive and salience networks) emerge, leading to clarity and presence.

  • Improved emotional regulation: Quieting the DMN reduces rumination loops, helping manage stress, anxiety, and mood disorders.

  • Enhanced meditation effect: Float therapy induces brainwave patterns similar to deep meditation, even for beginners.

(Sources: National Library of Medicine; NeuroImage Journal)

Why This Matters for Modern Life

Our 24/7 lifestyle keeps the DMN on overdrive. Phones, deadlines, and social media constantly pull us back into mental loops.

This is why so many people leave a float session saying: “It feels like my brain hit the reset button.”

By giving the DMN a break, float therapy creates:

  • Calmness instead of overwhelm

  • Focus instead of distraction

  • Presence instead of mental time-travel

Float Therapy vs. Meditation and Psychedelics

  • Meditation: Long-term meditators show reduced DMN activity, but it can take years of practice. Floating accelerates this process, even for beginners.

  • Psychedelics: Substances like psilocybin and LSD also temporarily quiet the DMN, which is why they are studied for depression. Float therapy offers a safe, natural alternative—no substances required.

What You’ll Feel After a DMN Reset

After floating, many guests report:

  • Mental clarity and sharper focus

  • A “lighter” emotional state

  • Creative breakthroughs and problem-solving insights

  • Deeper sleep in the nights following the float

This isn’t just relaxation—it’s a neurobiological reset.

Experience It at Omni Space

At Omni Space in Thảo Điền, we’ve designed float rooms specifically to support nervous system recovery and mental clarity. If your mind feels stuck in overdrive, a float may be the reset button you’ve been searching for.

👉 Book your float today and give your Default Mode Network the stillness it needs.

Q: What is the Default Mode Network (DMN)?
A: A brain network linked to self-talk, daydreaming, and rumination.

Q: How does float therapy affect the DMN?
A: Floating reduces sensory input, which quiets DMN activity and helps reset the brain.

Q: Can float therapy improve focus and creativity?
A: Yes, studies suggest DMN quieting during floating enhances clarity and creative thinking.