Deepinder Goyal Addresses Medical Criticism Over Temple Brain Monitoring Device
Zomato CEO Deepinder Goyal has addressed criticism from medical professionals regarding his experimental Temple brain monitoring device. Goyal clarified that no commercial announcements have been made and the company is months away from releasing preview devices. The device, which monitors brain blood flow and is based on Goyal's ₹225 crore investment in the 'Gravity Ageing Hypothesis', has faced scrutiny from doctors who question its scientific validity and effectiveness.

*this image is generated using AI for illustrative purposes only.
Zomato CEO Deepinder Goyal has broken his silence regarding mounting criticism from medical professionals over his experimental health monitoring device called Temple. In a social media post on January 9, Goyal addressed concerns raised by doctors and influencers about the wearable brain monitoring technology.
Goyal's Response to Critics
In his post titled "Gentle reminder to all the concerned doctors and/or influencers", Goyal emphasized that no official announcements have been made regarding the Temple device. He clarified the current development status:
| Development Status: | Details |
|---|---|
| Public Announcements: | None made yet |
| Benchmarking Data: | Not released officially |
| Preview Device Timeline: | Months away from public introduction |
| Commercial Availability: | Not available for order or pre-order |
Goyal expressed amusement at critics advising against purchasing what he described as an "unvalidated" device that isn't currently available for purchase. "You are advising people not to buy an 'unvalidated' device that isn't even available to order or pre-order yet. That's funny," he wrote.
About the Temple Device
The Temple device gained public attention when Goyal was spotted wearing it during an appearance on Raj Shamani's YouTube podcast. The experimental device is designed to continuously monitor blood flow in the brain in real-time. Key specifications of the device include:
- Design: Small sensor in gold or silver color
- Placement: Worn near the temple area
- Function: Monitors brain blood flow as a marker of neurological health and aging
- Investment: ₹225 crore from Goyal's personal funds
- Research Basis: Goyal's 'Gravity Ageing Hypothesis'
Medical Professional Criticism
Several prominent medical professionals have voiced concerns about the Temple device and its scientific foundation. The criticism has come from multiple healthcare experts:
| Critic: | Position | Key Concerns |
|---|---|---|
| Dr Cyriac Abbey Philips (The Liver Doc): | Medical Professional | Described theory as "ancient, already debunked" |
| Dr Rahul Chawla: | Neurologist, AIIMS-trained | Called it a "ridiculous experiment" |
Dr Philips criticized Goyal for promoting what he termed an "ancient, already debunked gravitational theory of ageing" to market a wellness product. He compared the device to "a fat band-aid stuck to the temple" and warned against misinformation being branded as wellness innovation.
Dr Chawla, a consultant at IBS Hospital in Lajpat Nagar and founder of HealthPil.com, expressed concerns about the device's effectiveness. He noted that while the device may pick up signals from the temple area related to surface blood flow or pulse changes, measuring actual blood flow inside the brain requires far more complex technology. "In medical science, even advanced tools like MRI and specialised research equipment have their limits," he stated.
Future Plans and Transparency Commitment
Goyal assured that complete scientific data will be shared if and when the company decides to commercialize Temple. He encouraged medical professionals to reserve judgment until official data becomes available, stating: "We will share all the science if and when we decide to sell Temple. You can judge and give all your advice at that moment."
The CEO also called for support of Indian startups while acknowledging the value of medical skepticism when applied at appropriate times. He emphasized that substantial work remains underway before any public release of preview devices.
































