One View: A recent article in the New York Times suggests that drinking more water may actually help in managing your migraines, especially in the summer. For many migraineurs the increased heat and temperature spikes can precipitate headaches. An article in the journal Neurology suggests the risk of migraines jumps almost 8% for every 9 degree rise in temperature.
A simple step to stay hydrated is drink more water. Dehydration causes blood volume to drop, resulting in less blood and oxygen flow to the brain and dilated blood vessels. Some experts suspect a loss of electrolytes causes nerves in the brain to produce pain signals…. so taking in more water can help you stay more hydrated, which may possibly help in controlling your headaches.
On the other hand, it occurs to me that everybody always says drink more, keep well hydrated, etc…there are serious consequences to over hydrating, without getting in sodium(electrolytes)…in marathons, for instance, the people who have seizures or coma after are not ones who under hydrate, but rather those who drink too much, without drinking sports drinks or electrolytes.
I am just not sure as to whether hydrating a lot actually helps headaches; certainly in hot summer days, outside sweating a lot, of course we need to drink more…. but the jury is out as to whether or not daily drinking of a lot of H2O really does help..it is probably an individual case by case basis, where some do have decreased headaches, while with many folks it may not matter….