Going without water for too long causes headaches for some people, and has been identified as a migraine trigger. The good news is that in a study on the effects of water on headaches, participants experienced “total relief” from their headaches within 30 minutes of drinking water (two cups, on average) .Geagan says a good way to prevent headaches is to stay hydrated throughout the day. And if you’ve already been hit with a dehydration-triggered headache, you’ll need significantly more water to help it go away. She recommends drinking two to four cups of water for headache relief within one to two hours.
Water keeps the cartilage around our joints hydrated and supple, ensuring that our joints stay lubricated. It also protects our spinal cord and tissues, keeping us healthy from the inside out. Geagan explains that cartilage the rubbery material that coats our bones is about 85 percent water. To keep this protective material healthy, we need to keep hydrated.