Device 'could revolutionise blood pressure monitoring'
21 February 2011 Last updated at 11:03 GMT
A device which can be worn like a watch could revolutionise the way blood pressure is monitored in the next few years, scientists say.
Researchers at the University of Leicester and in Singapore have developed a device to measure pressure in the largest artery in the body.
Evidence shows it gives a much more accurate reading than the arm cuff alone.
The BBC's Mike Cartwright reports.