Retro-style headphones that heat one ear while cooling the other could help to prevent migraines.
Patients who wore them for just 30 minutes a day over a three-month period suffered half their usual number of attacks, and were also able to cut down their use of preventive drugs, according to a new study.
Researchers believe that the experimental device affects the nerves in the ear, leading to changes in part of the brain stem thought to be involved in the triggering of migraines.