Mooncake may have a point but there are other aspects to consider relative to maintaining the H2S in one's system. I try not to keep it trapped in my body and so voluminous quantities may be in my house. Although my BP is low, my wife's fluctuates directly with the amount I release. I don't understand this phenomena since my releases are pleasantly fragrant like a fine perfume and, as its said that laughter is the best medicine, I am able to laugh away all of my stresses while she just increases hers along with her BP. My sister, who produces volume sufficient to cause people who get out of her car to get a case of the bends when moving to the lower pressure of the outdoors, also keeps her BP low by enjoying the various musical tones she creates and the sights of her passengers bailing out and trying to recover from their intolerance. So, as Tommy Chong once said, "It's a natural function, man", let 'er rip and enjoy your good health!