What Is The ‘Temple’ Device Deepinder Goyal Has Been Wearing — And Does It Really Help Reverse Ageing?

When Zomato founder Deepinder Goyal appeared on Raj Shamani’s podcast wearing a small silver gadget just beside his right temple, the clip lit up social media — and not just because it looked sci-fi. Goyal has

publicly tied the device, which he calls Temple, to his new research efforts into brain health and a provocative “gravity ageing” idea; he and his team say the gadget is an experimental, non-invasive monitor intended to measure blood flow to the brain in real time.

What is Temple likely measuring?

Although Goyal hasn’t published full technical specs, the type of continuous, wearable cerebral monitoring he describes is an active area of academic work. Researchers and start-ups are developing small optical and sensor patches that use techniques such as functional near-infrared spectroscopy (fNIRS), diffuse speckle contrast flow or diffuse correlation spectroscopy (DCS) to estimate regional cerebral blood flow and oxygenation without surgery. These approaches allow mobile tracking of brain perfusion and cognitive fatigue in research settings — but they remain primarily research tools rather than proven consumer health devices.Read more: This Is The Best Time Of Day To Drink Coffee, And It Might Be Better For Your Heart

Who’s involved?

Goyal has linked Temple to his broader longevity interests (and to an entity referred to in media coverage as Continue Research), while the gadget’s public debut came during a podcast hosted by Raj Shamani — the viral visibility immediately turned a niche prototype into a mainstream talking point. Several Indian and tech outlets have reported on the device and on Goyal’s stated aims to explore brain blood flow as a biomarker for ageing. Crucially: measuring brain blood flow is not the same as proving you can “reverse ageing.” Continuous CBF (cerebral blood flow) data could become a useful physiological signal — for tracking sleep, stress, orthostatic changes or early neurologic decline — but there is no clinical evidence that wearing a monitoring patch will slow, stop or reverse fundamental ageing processes. Experts caution that novel biomarkers need rigorous validation, reproducible trials, and regulatory review before clinical claims can be made. Media coverage has reflected both fascination and skepticism about the leap from monitoring to “anti-ageing cures.”

What to watch for next?

Peer-reviewed papers or preprints describing Temple’s measurement method and validation against clinical standards; independent trials showing that interventions triggered by the device alter meaningful outcomes; and regulatory filings if the team seeks medical-device approval. Until then, Temple is best seen as an intriguing research prototype at the intersection of wearable optics and longevity entrepreneurship — interesting for hypothesis-generation, not a substitute for established medical science.Read more: This Foot Warning Sign May Indicate Vitamin B12 Deficiency: Early Symptoms to Watch For