NHS: Can a ’microwave helmet’ really detect strokes?

“Microwave helmet ‘can spot a stroke’,” reports BBC News.

There are two types of stroke. The majority of strokes are caused by a clot stopping blood flow to an area of the brain. This type of stroke can be treated with anti-clotting medications to break up or dissolve blood clots. However, this type of treatment is disastrous if the stoke turns out to have been caused by bleeding into the brain.