This is must to remember.

A most often headaches provoking as liquid in organism failure, for preventing this,drink till 2 l. of water/day, as limiting caffeine, this will low a frequently for headaches, and doing right day regime, as check atmosphere in your room, an often ventilate room, less watch tv are horrors,and thrillers, does you bed is comfortable?, as bed is must to be a smooth, not a very soft, with a not high pillow, as on your sleep your brain and organism are restoring, as more rest on the fresh air, as oxygen failure is also reason for headaches displays.
By Olga Antonovskaja, Neurologist for a first category.