Using natural gas in not healthy for humans. It is not as bad as other things for your health, but it will still hurt you over a long period of time. Natural gas is contributing to global warming which is detrimental to the health of every person on the planet.
Science has proven through studies again and again that using natural gas is not healthy for humans in various ways. There are short and long term effects upon human beings health that come from the usage of natural gas. These effects are almost always entirely negative in nature. There are also many accidents that occur from the use of natural gas, that put the health of humans at risk as well.