Health and Me

Ishita Roy

AIIMS Doctor Calls Zomato CEO’s ‘Temple’ Device Unscientific, Says It Offers No Proven Health Benefits

Zomato CEO Deepinder Goyal was seen using a "Temple" device during a podcast. A small metallic device which was placed on the CEO's head. While this drew a lot of trolls and jokes on the internet, for what looked like "chewing gum", and some said "charging pads", here's what Goyal said about it. 

Goyal was seen wearing this silver-colored device on one side of his head during a Raj Shamani podcast called Figuring Out. He claimed that this device measures blood flow in the brain in real time. The experimental health-tech device, as he claimed, is used to measure cerebral blood flow or CBF, in a similar manner as miniaturized MRI. 

Also Read: <a href="https://www.healthandme.com/health-news/indore-water-contamination-leaves-a-woman-with-guillain-barr-syndrome-what-is-it-article-153403843" data-type="tilCustomLink" target="_blank">Indore Water Contamination Leaves A Woman With Guillain-Barré Syndrome, What Is It?</a>

The blood flow in brain is essential to survive and CBF usually remains unchanged or declines minimally during aging. This is not the first time Goyal was seen wearing this Temple. In fact, last November, he said he had been wearing this for a year. 

At that time he said, "“While conducting research on the Gravity Ageing Hypothesis, we had to make an experimental device to calculate Brain Flow accurately, in real-time, and continuously. Been using it for a year, and I’ve been feeling that this could shape into an important wearable the world needs."

He also announced $25 million, which in INR is equivalent to 225.7 crore funds to research in human aging and biological health. His <span>health and wellness</span> project, Continue Research, is also looking into the reasons of aging. 

<h2>What Are Experts Saying About This "Temple" Device?</h2>

While Goyal claims that it measures blood flow to the brain, experts say otherwise. Dr Suvrankar Datta, who is a radiologist with clinical training from AIIMS, Delhi, said that the device is unscientific. 

“As a physician-scientist and one of the earliest researchers in India in Arterial Stiffness and Pulse Wave Velocity (2017) which predicts cardiovascular mortality, I can assure you that this device currently has 0 scientific standing as a useful device,” Dr Datta wrote on X.

He also asked people to not "waste" their hard earned money to buy "fancy toys billionaires can afford to waste money on". 

Neurosurgeon Dr Vishwanathan Iyer from Mumbai’s Zynova Shalby Hospital, who spoke to NDTV said that the place where the device sits is a red flag it self, as a senior on the temple can only capture surface level signals.

“Such devices are designed to pick up surface-level signals, but they do not directly measure brain blood flow like an MRI,” he said. He also added that MRI scans are complex hospital-based tests and cannot be replaced by a small wearable gadget.

He also highlighted that wearing a device is not same as measuring real brain activity or circulation. The doctor explained that while such sensors could record indirect indicators like pulse or skin changes, they should not be confused with actual cerebral circulation. 

He also seconded with Dr Iyer and said that there is not enough clinical evidence to support its use and more research on Temple is required. Until then, it should be seen strictly as a wellness experiment and not a medical device. “People should be careful before spending money on them, especially if they are expecting medical benefits,” he said.

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Zomato CEO Deepinder Goyal was seen using a "Temple" device during a podcast. A small metallic device which was placed on the CEO's head. While this drew a lot of trolls and jokes on the internet, for what looked like "chewing gum", and some said "charging pads", here's what Goyal said about it. What Is The "Temple" Device?Goyal was seen wearing this silver-colored device on one side of his head during a Raj Shamani podcast called Figuring Out. He claimed that this device measures blood flow in the brain in real time. The experimental health-tech device, as he claimed, is used to measure cerebral blood flow or CBF, in a similar manner as miniaturized MRI. Also Read: Indore Water Contamination Leaves A Woman With Guillain-Barré Syndrome, What Is It?The blood flow in brain is essential to survive and CBF usually remains unchanged or declines minimally during aging. This is not the first time Goyal was seen wearing this Temple. In fact, last November, he said he had been wearing this for a year. At that time he said, "“While conducting research on the Gravity Ageing Hypothesis, we had to make an experimental device to calculate Brain Flow accurately, in real-time, and continuously. Been using it for a year, and I’ve been feeling that this could shape into an important wearable the world needs."He also announced $25 million, which in INR is equivalent to 225.7 crore funds to research in human aging and biological health. His health and wellness project, Continue Research, is also looking into the reasons of aging. What Are Experts Saying About This "Temple" Device?  As a physician-scientist and one of the earliest researchers in India in Arterial Stiffness and Pulse Wave Velocity (2017) which predicts cardiovascular mortality, I can assure you that this device currently has 0 scientific standing as a useful device and do not waste your hard… https://t.co/pm0pxGRycd&mdash; Dr. Datta M.D. (Radiology) M.B.B.S. 🇮🇳 (@DrDatta_AIIMS) January 4, 2026 ]]>While Goyal claims that it measures blood flow to the brain, experts say otherwise. Dr Suvrankar Datta, who is a radiologist with clinical training from AIIMS, Delhi, said that the device is unscientific. “As a physician-scientist and one of the earliest researchers in India in Arterial Stiffness and Pulse Wave Velocity (2017) which predicts cardiovascular mortality, I can assure you that this device currently has 0 scientific standing as a useful device,” Dr Datta wrote on X.He also asked people to not "waste" their hard earned money to buy "fancy toys billionaires can afford to waste money on". Neurosurgeon Dr Vishwanathan Iyer from Mumbai’s Zynova Shalby Hospital, who spoke to NDTV said that the place where the device sits is a red flag it self, as a senior on the temple can only capture surface level signals.“Such devices are designed to pick up surface-level signals, but they do not directly measure brain blood flow like an MRI,” he said. He also added that MRI scans are complex hospital-based tests and cannot be replaced by a small wearable gadget.He also highlighted that wearing a device is not same as measuring real brain activity or circulation. The doctor explained that while such sensors could record indirect indicators like pulse or skin changes, they should not be confused with actual cerebral circulation. He also seconded with Dr Iyer and said that there is not enough clinical evidence to support its use and more research on Temple is required. Until then, it should be seen strictly as a wellness experiment and not a medical device. “People should be careful before spending money on them, especially if they are expecting medical benefits,” he said.