A device that emits magnetic pulses may reduce pain for migraine sufferers who get early warning of their headaches in the form of an aura – typically sight disturbances such as flashes of light or moving patterns. However, in the study, the device worked for only 4 in 10 people.

What do we know already?

Scientists are beginning to make progress in finding out what causes migraine headaches that begin with an 'aura', an unusual sensation that happens before the headache begins. An aura can include seeing flashing lights... 

Read More at Life and style: Health & wellbeing | guardian.co.uk