Deepinder Goyal, Founder of Zomato and Eternal CEO, grabbed massive attention when he was seen wearing a ‘temple device’ in a podcast. This sparked massive curiosity. Viewers noticed a small gold or silver clip-like gadget attached near his temple and started wondering what it was.
While some users joked it was a “chewing gum”, another commented it was “external SSD”. From “brainwashing” to “charging pads”, speculations were rife about the clip-like device.
What is this ‘Temple’ device?
The device is called “Temple” an experimental sensor that Goyal says is designed to measure blood flow to the brain in real time. According to reports, it uses advanced sensors (potentially with AI integration) to track patterns of cerebral circulation, a key factor linked to neurological health and ageing. Deepinder Goyal has been testing this device for over a year and says it’s part of his personal work on a health hypothesis. It’s not a commercial product available in the market yet.
“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,” the Zomato CEO said at the time.
Temple is a research prototype being developed under a health-tech startup of the same name, linked to Goyal’s Continue Research.
As per Goyal, Temple is designed to test whether long-term changes in brain blood flow could accelerate ageing.
Expert calls it a ‘Fancy Toy’
The “Temple” device has sparked strong criticism from medical experts, especially a former doctor from AIIMS Delhi. The doctor publicly dismissed the wearable, saying it currently has “zero scientific standing” as a useful medical device. In simple words, he warned people not to assume it has proven health benefits or spend money on it.
What Deepinder has to say about ‘Temple’
Goyal has described the project as an open-source research effort, writing on social media: “I’m not sharing this as the CEO of Eternal, but as a fellow human, curious enough to follow a strange thread. A thread I can’t keep with myself any longer. It’s open source, backed by science, and shared with you as part of our common quest for scientific progress on human longevity. Newton gave us a word for it. Einstein said it bends spacetime. I am saying gravity shortens lifespan.”
When will ‘Temple’ launch
Well, there is no official date for the launch, but Deepinder has already hinted on the same. Temple is not available for sale, has no announced price, no confirmed launch timeline, and no publicly stated regulatory pathway. What has been released so far is only a teaser.
Goyal has hinted at a coming soon phase via a post on Instagram (Temple’s page already has more then 9,000 followers), suggesting an early-access or limited research rollout before any wider availability.
What is gravity ageing?
According to experts, the gravity hypothesis is based on the fact that gravity reduces blood flow to the brain since humans spend most of their lives upright, with the brain positioned above the heart. As years pass, the reduced circulation accelerates brain ageing – thereby affecting the rest of the body.
Goyal, giving examples from bats, which are usually inverted and live significantly longer for their size, and to yoga practices involving ‘head below heart’ postures, said that there is a link between height and lifespan, suggesting shorter individuals may live longer because blood travels a shorter distance against gravity to reach the brain.
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