What the body needs the most:
1. oxygen, 2. water 3. sodium, 4. potassium 5. salt (not table salt), but Celtic Sea Salt as it has the most minerals, which is 82. 2nd best salt is Himalayan Pink salt which has 75 minerals.

When you drink water, space it out during the day, no more than half a glass at a time. Water and salt is needed to get sodium, also potassium, glucose, into your body's cells. Potassium is found in fruit and vegetables. Calcium and glucose cannot get into the cell by itself. Calcium needs Vitamin D which pulls the calcium into the cells. Potassium pulls your water into the cell.

Glucose can't get into the cells in a high carb and sugar diet. To get glucost into the cells, cut down on carbs and sugar right down. Also increase your fibre, protein and fats which will satisfy your well being and you'll not gain a lot of weight because of mineral deficiency and have high blood pressure.
If you're getting a little tired, say mid morning, have a little water and take a little salt, and you'll regain energy. It's just as good as coffee. Or go outside and go near a tree, as it is giving off life-giving oxygen, breathing deeply from your abdominal muscles. The water and oxygen brings energy into your cells, even more than your morning walk.

Make sure you have enough grains and enough water and salt throughout the day for a healthy body. Also get out in the sun so the minerals and calcium get into your cells or you may have Vit. D deficiency and also lack of exercise. So gain understanding what are the needs of your cells. Understand your cells' needs which depend on your water intake. Half a cup of water every hour. You'll find you won't need medications. Just get enough fruit, vegetables, and herbs.

One sign you are getting dehydrated is your saliva will start
to run. Your need to drink at least 2 quarts of water a day and take a bit of salt to go with it. You lose water through your kidneys, skin, colon, and lungs daily, so you have to replace it. You can replace some of it with not only water, but fruits, veg., herbs, juices, in order to retain adequate volume of your blood. Have water between your meals during the day.