Indian billionaire, doctors spar over $900 brain blood-flow tracker

Résumé détaillé
MUMBAI: A tiny, $900 wearable device being developed by an Indian billionaire entrepreneur and showcased by some of the country's ...
MUMBAI: A tiny, $900 wearable device being developed by an Indian billionaire entrepreneur and showcased by some of the country's top sportspersons has sparked criticism from doctors who say its claims of tracking blood flow to the brain are exaggerated.
The Temple device is less than 1 inch (2.54 cm) wide and weighs under 2 grams (0.07 oz). It sticks to the side of the head between the forehead and the ear, or the temple area.
Promotional materials for the device, developed by Deepinder Goyal, say that its BrainFlow feature shows how well the brain is being supplied with blood in real time and its Entropy feature can detect how hard the body works to shed heat.
It can also measure thermal, immune, digestive, cognitive and emotional readings that help to transform how a person regulates their health, they say.
Priced at 85,000 rupees ($907), the device comes in six colours. India's cricket captain Shubman Gill and Olympic medal-winning badminton player P.V. Sindhu have worn it.
Some well-known doctors in the country, however, are sceptical of the claims, saying the device's capabilities are not backed by peer-reviewed research. In prime-time shows and on social media, they are calling for the device to come under the purview of medical regulators.
Prominent Indian hepatologist Cyriac Philips, known as "TheLiverDoc", has been criticising the device on his X account with 328,000 followers, calling Temple "the biggest health scam".
"People must be aware of wellness hacks such as wearables also, even though they are not marketed as health devices," he told Reuters.
On one prime-time TV discussion, paediatrician and nephrologist Sanjeev Bagai called Temple a "gimmick", saying it had "no formal approval or clearance".
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