Is hydrogen inhalation safe? Will it explode? Is there a dose limit for human use of hydrogen?
Hydrogen is the gas normally produced by our colon, which is up to 12L of hydrogen per day without any harm to the human body. Since hydrogen does not affect the free radicals required for the body to maintain life activities, there have been no reports of hydrogen interfering with normal physiological activities of the body, and there is no dose limit on its use.
In 1980, Levitt published an article in the New England Journal of Medicine stating that hydrogen production in the intestine is a component of human physiology. If calculated based on Levitt, the average daily hydrogen production of the normal people is 345.6ml and a maximum of 41740ml. The maximum hydrogen production after eating is calculated at 7 times, which is 292.18 liters. If calculated at 30 times, the maximum hydrogen production can reach 1252.8 liters.
At present, the hydrogen and oxygen inhalation machine produces a maximum gas flow rate of 3L per minute, containing 66% hydrogen and 34% oxygen. The actual inhalation into the lungs is estimated to be 20%. Therefore,47.52 L of hydrogen is inhaled per day if we absorb hydrogen for 2 hours. While 95.04 L is inhaled per 4 hours, which is much lower than the hydrogen production in the body after eating.
From an evolutionary perspective, it is not surprising that molecular hydrogen produces biological effects. In addition to its role in the origin of the universe, hydrogen also participated in the origin of life and played a positive role in the evolution of eukaryotes. Over millions of years of evolution, plants and animals have developed reciprocal relationships with hydrogen producing bacteria, maintaining a certain basic level of molecular hydrogen in the eukaryotic system. It is reasonable to infer that eukaryotes may have preserved their sensitivity and dependence on molecular hydrogen over millions of years of evolution. Therefore, absorbing hydrogen into the human body or other methods such as drinking hydrogen water and hydrogen water bubble bath is merely an adaptation to the biological processes of living organism.
Hydrogen has a relatively low activity and appears as an inert gas without a catalyst or body temperature. Hydrogen does not react with most compounds, including oxygen at room temperature. Hydrogen is only flammable at temperatures above 527 ℃ and only explodes through a rapid chain reaction with oxygen within the explosive range of hydrogen concentration 4%~75%. Don’t worry about drinking hydrogen water or hydrogen water bathing normally. No smoking and other fire behaviors when inhaling hydrogen.
