It is believed to have an epigenetic function, regulating other genes by switching them off when necessary. (scientificamerican.com)
I love it as it saves battery by automatically switching it off if it is not in use for an extended period of time that you might forget to do yourself. (goodereader.com)
Some people feel better when tossing their phone away while driving, or even by switching it off, they feel even less stressed out while driving. (drivingschoolkaty.com)