Deepinder Goyal’s Temple Takes First Step Towards Validating Its Wearable

Deepinder Goyal’s wearable startup Temple has released its first validation study, with researchers finding that its proprietary brain flow metric broadly tracked changes in cerebral blood-flow velocity recorded using transcranial Doppler (TCD) ultrasound. However, the study, published as a preprint, involved only 23 healthy adults and has been submitted for peer review. TCD is a non-invasive ultrasound technique used to measure the speed and direction of blood flow in the brain’s major arteries