U.S. researchers said they have developed a small, wearable health monitor that is similar to the "Star Trek" Tri-Corder.
The flexible patch can be worn on the chest, and it tracks biochemical and electrical signals in the human body.
Then, it communicates that wirelessly to a laptop, smartphone or a smart watch.
The device also provides real time data on electrocardiogram heart signals, as well as the levels of lactate, which is a biochemical that helps chart physical effort.
Researchers said the device could be used for things such as monitoring athletes while they train, to managing heart disease patients.
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