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Coming Q4 2026 Β· Waitlist Open

BrainFog
Unfreezer

A wearable device that measures your cognitive fog in real-time and tells you exactly what to do β€” walk, hydrate, breathe, rest β€” to get your mind back.

No payment now Β· 30% early-bird discount at launch Β· 2,000 spots only

The problem

You're working. But your brain isn't.

2.3 hrs

Average daily productivity lost to undetected brain fog in knowledge workers

68%

Of people misattribute fog symptoms β€” they push harder instead of intervening

12 min

Average time to restore clarity with the right micro-intervention at the right moment

How it works

6 signals. One clarity score.

Cognitive Load

Measures mental fatigue in real-time via biometric sensors

Neural Alertness

Tracks HRV and micro-galvanic skin signals to gauge focus

Hydration Proxy

Skin conductance patterns indicate dehydration-driven fog

Physical Readiness

Motion & posture data to know when movement will help most

Breath Quality

COβ‚‚ & oxygen patterns tied to mental clarity cycles

Recovery Debt

Sleep deficit index calculated from overnight HRV data

The fog score

0–100. Instant. Actionable.

Every reading triggers a specific intervention β€” no guessing, no generic advice. The right fix at the right time.

0–30Critical Fog

Stop. 10-min walk outside + 500ml water immediately.

31–55Heavy Fog

5-min breathing exercise + stand and stretch for 3 min.

56–74Light Fog

Drink water + 2-min cold face splash. You'll bounce back.

75–89Clear

Good window for deep work. Protect the next 90 minutes.

90–100Peak State

Your best window. Tackle your hardest task right now.

Device specs

Built for all-day wear

Form FactorWristband + companion clip (attaches to shirt collar)
SensorsHRV, GSR, SpOβ‚‚, skin temperature, accelerometer, microphone (breath)
Battery72-hour continuous, 15-min fast charge
ConnectivityBluetooth 5.2, iOS & Android app
Data PrivacyAll processing on-device. Nothing sent to cloud without consent.
MaterialsMedical-grade silicone band, recycled aluminium chassis

Early access

Join the Waitlist

Free to join. First 2,000 members get 30% off at launch + beta access to the app before anyone else.

No payment. No spam. Unsubscribe anytime.

FAQ

Common questions