What is the use of the white button that Theresa May has on her skin?

This "white button" is a device at the forefront of technology to measure blood glucose levels in children and adults with type 1 diabetes. This was confirmed by May when he spoke publicly about the diagnosis made in 2012.

Being insulin dependent, May you need to monitor your blood sugar several times a day provide your body with the necessary doses of this hormone. That's why he uses the button that replaces the perforations in the fingers.

The system consists of a sensor located at the back of the forearm and measures the glucose level in the interstitial fluid by a small filament which is placed just under the skin.

It also has a reader used to scan the sensor, and cOn each scan, you can see the current glucose value, a story of the last eight hours and a trend arrow.

"This system greatly simplifies blood glucose control and has other very important benefits, such as glucose trend labeling, i.e. if it goes up or down", explained Adriana Angelina, president of the Civil Association of Diabetes, Argentina (ADA).

The device can use is available in Argentina since mid-2017 but it is still not accessible to all patients.

Angelina noted that the device "is not yet covered by most social works" in the country "so"patients without resources must respect the previous alternatives"

According to data from the country's Ministry of Health, diabetes is an epidemic disease which affects one in ten adults in Argentina.