drink water for a headache ...

Hi shilps, A nice topic, and yes, I agree with you. I get this kind of headache in the weekends! I don't know why..but it seems that I do not drink water as much as when I was at the office, and it normally happen after I get out from home, when the heat is terrible. It happened to me many years ago and until now. At first, I don't know about this dehydration thing, I thought it was only a headache. But after I got married, my husband told me to try drink waters before going out of home, in order to prevent the headache. He said that it happens due to the blood pressure drop. I did it, and it worked :)..However, sometimes I forgot to drink waters before going out..ha ha ha.. But anyway, it was also said that it happens because we don't exercise enough.