This tiny wristband measures your blood pressure without you noticing

No more arm-squeezing machines: With this wristband from Aktiia, you can continuously monitor your blood pressure. — dpa

The problem with high blood pressure is that it often goes undiscovered in those that suffer from it. Diagnosing it can be hard, as it traditionally involves wearing a pressure monitor for a day of arm-squeezes. Enter the wristband from the Swiss start-up Aktiia.

Around a third of all adults have high blood pressure. This so-called 'silent killer' is projected to affect at least 1.5 billion people globally by 2025.