Having a beleif system gives no freedom and gives you certain restraints. Although, I'll give it to the writers of the bible, they did create the greatest fiction novel of all time. http://www.eclipse.co.uk/thoughts/index.htm
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Gas and masturbation are highly unlikely to be connected with each other. Have you tried to stop masturbating? Has the gas subsided as a result? Perhaps you could try the same experiment by increasing the times you masturbate daily. Do you notice that the gas is increasing?