Another North Korean medical breakthrough

They'll never top "Curative plastic sheets Nos. 1 and 2," but this is also very impressive:

A multi-purpose light therapy device developed in the Democratic People's Republic of Korea is gaining popularity in the country.

The device, based on the polarized light effect of calcite abundant in the country, promotes blood circulation and metabolism and prevents thrombus, raising immunity in human body.

It has a special virtue for various diseases, mental and physical fatigue, headache caused by a long-time use of computer, and insomnia.

Used like a wristwatch during sleep, it helps prevent heart failure and cerebral haemorrhage and thrombosis.

It won a gold prize at an international patent exposition held in China.

I don't doubt it. The latest Haveil Havalim is also deserving of a gold prize.