Drinking hydrogen water prevents premature cell death. Due to its anti-oxidant capabilities, molecular hydrogen in the water is able to selectively scavenge the Reactive Oxygen Species that causes oxidative stress and thus premature cell death. In addition, molecular hydrogen also triggers the activation or up regulation of additional antioxidant enzymes (e.g. glutathione, superoxide dismutase, catalase, etc.) and/or cytoprotective proteins of the body. This way, the cells do not suffer oxidative stress.