On most mornings, one of the first stops through my waking-up routine is the kitchen cupboard, where I keep my cups and other drinking vessels. Even if I'm not particularly thirsty, as a student of the brain, I'm convinced of the value of drinking enough water. Of all the tricks I've learned for keeping my mind sharp, from getting enough sleep to doing crossword puzzles, staying hydrated may be the one I follow most closely, partly because it's so easy to get a drink whenever I'm thirsty. This is a convenience to be gratefulfor.
Our brains depend on proper hydration to function optimally. Brain cells require a delicate balance between water and various elements to operate, and when you lose too much water, that balance is disrupted. Your brain cells lose efficiency.
Years of research have found that when we're parched, we have more difficulty keeping our attention focused. Dehydration can impair short-term memory function and the recall of long-term memory. The ability to perform mental arithmetic, like calculating whether or not you'll be late for work if you hit snooze for another 15 minutes, is compromised when your fluids are low.
Over the course of a typical twenty-four hour period, the longest spell most of us go without fluid intake is the six to eight hours we spend sleeping. Sleeping is hardly the kind of activity that you sweat over, but that doesn't mean you're not losing water during the night. With every somnolent breath, you expel moisture, and the cumulative effect of a night's sleep is to dry out.
It's for this reason that I habitually get a drink soon after I wake up. If you're like me, when you're simply reminded of the negative effects of dehydration, your next thought is to head for the water cooler.
If we want to have our wits about us, we've got to take in fluid. Imagine, as you think about how important water is to your own daily functioning, what life might be like if your access to it was restricted. Perhaps you usually drink bottled water. Imagine it did not exist. You would get thirsty enough, eventually, to drink from the tap. It's always there, at your disposal. But suppose the nearest tap were 5 miles away. That's not such a long distance, except you don't have a car. And it's hot outside, like 101 F. Now how motivated are you to walk that long way in the sun? What if you've got a thirsty child?
https://www.psychologytoday.com/us/blog/you-illuminated/201010/why-your-brain-needs-water
هل تتناول لترين من الماء كل يوم ؟؟
- يمثل الماء نسبة 76% من مخك
- يمثل الماء نسبة 90% من رئتيك
- يمثل الماء نسبة 84% من دمك
يعمل الماء كمادة تزييت ويكون العنصر الأساسي للعاب والسوائل التي تحيط بالمفاصل، وينظم درجة حرارة الجسم، وتتم عمليات تبريد وتسخين الجسم من خلال إفراز العرق، وإذا أصبت بالجفاف، فلن تتمكن من أن تؤدي وظائفك العضوية بطاقة وحيوية مدهشة.
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