AIIMS Doctor Questions Scientific Validity of Deepinder Goyal's Temple Brain Health Wearable
Deepinder Goyal's experimental brain health wearable Temple has sparked controversy after the Zomato CEO wore it during a podcast appearance. While described as a device to monitor brain blood flow based on Goyal's aging research interests, AIIMS doctor Dr. Datta strongly criticized it as having zero scientific standing and warned against pseudoscientific health technology claims.

*this image is generated using AI for illustrative purposes only.
A controversy has erupted over Deepinder Goyal's experimental health-tech wearable device after the Zomato CEO was spotted wearing it during a podcast appearance. The device, called Temple, has drawn both curiosity and sharp criticism from the medical community, highlighting ongoing debates about scientific validation in wearable technology.
Device Details and Purpose
Startup founder Vineeth K provided details about the mysterious device that Goyal wore on the side of his head during his appearance on Raj Shamani's podcast. According to Vineeth K's explanation on social media platform X, Temple is described as an experimental health-tech wearable designed to continuously measure blood flow to the brain.
| Parameter: | Details |
|---|---|
| Device Name: | Temple |
| Function: | Continuous brain blood flow measurement |
| Status: | Research prototype, not consumer product |
| Development Stage: | Experimental project |
The concept behind Temple stems from Goyal's interest in aging, cognition, and longevity research. Vineeth K linked the device to what he described as Goyal's "Gravity Aging Hypothesis," which explores how gravity over time may impact cerebral blood flow and overall brain health. The startup founder positioned Temple as a glimpse into the future of wearable brain-health technology rather than a current commercial offering.
Medical Community Pushback
The claims surrounding Temple have drawn strong criticism from medical professionals. Dr. Datta, a physician-scientist from AIIMS Delhi, delivered a scathing assessment of the device's scientific credibility. As one of India's earliest researchers in Arterial Stiffness and Pulse Wave Velocity since 2017, Dr. Datta stated that the device currently has zero scientific standing as a useful medical device.
| Medical Expert: | Dr. Datta, AIIMS Delhi |
|---|---|
| Specialization: | Physician-scientist, Arterial Stiffness research |
| Assessment: | Zero scientific standing |
| Recommendation: | Advised against purchasing such devices |
Dr. Datta specifically warned people not to waste their hard-earned money on what he characterized as "fancy toys billionaires can afford to waste money on." He directly challenged Vineeth K's claims about the device representing the future of health technology, stating he had to respectfully disagree and urging against hyping up pseudoscientific developments.
Development Background and Market Position
Goyal had previously hinted at Temple's development in December, describing it as part of his long-term interest in understanding brain aging and cognitive health monitoring through technology. The device's official website maintains an air of mystery, featuring only the cryptic tagline: "The future of health starts where no one's looking. Inside your brain."
The controversy occurs amid reports that the startup behind Temple is seeking to raise approximately ₹415.00 crore in funding. The investment round reportedly includes participation from prominent firms such as Steadview Capital and Vy Capital, among others.
Industry Implications
The debate surrounding Temple underscores broader questions about evidence-based validation, regulatory oversight, and responsible communication in the rapidly evolving wearable technology sector. The clash between entrepreneurial innovation claims and medical community skepticism highlights the challenges facing health-tech startups in establishing scientific credibility.
The controversy reflects ongoing tensions between technological advancement promises and rigorous scientific validation requirements in the healthcare wearables market. As wearable health technology continues expanding, the Temple debate illustrates the critical importance of peer-reviewed research and medical community acceptance for legitimizing new health monitoring devices.


























