Those who suffer from migraines should watch out for a thunderstorm because the drop in pressure in the atmosphere (which happens before a big storm) can make headaches more likely.
‘There’s no clear consensus about why this happens,’ says Professor Howard Jacobs, a headache specialist at the University of Maryland in the U.S.
‘But you could postulate that the atmospheric pressure change also affects the pressure in the fluid surrounding the brain and spinal column, which can cause headaches.’
In a small study, he found that stormy weather effected migraine sufferers less if they were already taking preventative medication such as triptans.
Daily Mail