Hot weather a migraine 'trigger'

A hot day can spell bad news for migraine sufferers, increasing their risk of an attack the next day, US research suggests.

The risk went up by 7.5% for every five degree Celsius increase in temperature revealed the study of more than 7,000 patients, published in Neurology.

The same applied to people who suffer from non-migraine headaches too.

Although you can't alter the weather, people can watch the forecast and pop a pill to avert attacks, the authors say

http://news.bbc.co.uk/1/hi/health/7931945.stm