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Temple Wearable Tracks Brain Blood Flow
7 Sep
Summary
- Temple's wearable metric aligns with ultrasound measurements of brain blood flow.
- A preliminary study involved 23 healthy adults and is awaiting peer review.
- The device aims to track signals distinct from common heart rate wearables.
Deepinder Goyal's wearable startup, Temple, has released its initial validation study. Researchers observed that Temple's unique brain flow metric showed broad correlation with cerebral blood-flow velocity data obtained via transcranial Doppler (TCD) ultrasound. This study, involving 23 healthy adults, has been submitted for peer review.
The research compared Temple's wearable to TCD during activities designed to alter blood flow. Temple's metric demonstrated a median within-subject correlation of approximately 0.8 with middle cerebral artery blood-flow velocity. This suggests the device can track changes potentially missed by heart-rate-only measurements.
While the findings indicate Temple's wearable can follow short-term changes in cerebral blood-flow velocity under controlled conditions, they do not confirm the ability to measure absolute cerebral blood flow or diagnose conditions. Further validation studies are planned.
Temple is developing its wearable to continuously track signals associated with "brain flow." The startup raised approximately ₹493 Cr earlier this year and is preparing for preorders, aiming to ship devices before the end of 2026. Temple also recently acquired Longevous for clinical expertise.
