Currently there has been an increasing interest in hydrogen water with respect to increasing proper hydration inside the cell. If you look at the Krebs cycle you can see that the NAD coenzyme uses hydrogen atoms.
1. Is it valid? Yes, and I speak from the aspect of improving the natural ability of the body to function better and heal itself with better assimilation with water that has increased dissolved hydrogen.
2. Most water we all drink to "keep hydrated" is WORTHLESS—well, let me say significantly suboptimal. Natural water has a normal crystalline structure that enables many of the electromagnetic properties of our body. This structure degrades with processing of water. It also degrades with environmental electromagnetic influences such as cell phones (yes, 5G!!!). Very subtle but this is affecting our biologic function. The majority of water we drink is suboptimal to promote healing-- actually, it barely sustains us. It slowly degrades and requires considerable energy to restore the normal crystalline structure of water. That's right, you're getting older is accepted. Hydrogen helps us rebuild the crystalline structure of water—that is the bottom line to restore longevity.
3. Water, which is a combination of two hydrogen and one oxygen atoms, has a dissolved portion of hydrogen gas in the water in the concentration of about 0.6 ppm (parts per million). This is the normal status of unprocessed water. Nobody has touched it yet. After processing, it degrades further. Many times the amount of dissolved hydrogen in what we drink is in the range of 0.08 ppm.
4. There are tablets that can be dropped into a bottle of water that can increase the part per million (ppm) concentration of hydrogen dissolved in water. Some companies claim their product can increase the concentration to 10 ppm. Hydrogen vaporizes so you drink this within 10 minutes after the tablet dissolves. Bottled and prepared hydrogen water is not as potent. Maybe more the range of 2 ppm. A good source is Quicksilver Scientific.
5. Hydrogen serves to detoxify oxidized radicals as well as chemicals and preservatives like hydrogen sulfide in processed food.
6. Go back to the natural, unprocessed waters of the Middle Ages. Baths consisted of a big tub filled with hot water. The man of the house had the first privilege of the nice clean water, then all the sons and men of the house, then the women, and finally the children. Last of all were the babies. By then the water was so dirty you could actually lose someone in it. Hence the saying “Don’t throw the baby out with the bathwater!” Just wanted to put that in.