NADH. the reduced form of nicotinamide-adenine dinucleotide. NADH-methemoglobin reductase. the enzyme in the erythrocyte that converts methemoglobin to hemoglobin, which is the form responsible for the transport of oxygen.1  Facebook.ADH. the reduced form of nicotinamide-adenine dinucleotide. NADH-methemoglobin reductase. the enzyme in the erythrocyte that converts methemoglobin to hemoglobin, which is the form responsible for the transport of oxygen. 1  Facebook.
Such as, users aged between 15 and 19 spend at least 3 hours per day on average on social media platforms majorly Facebook, Twitter and Instagram. The age group consists of students who spend their precious time in connecting with people rather than spending time on playing or studying.
The United States spent 121 billion minutes on social media sites in July 2012 alone, according to Nielsen's annual Social Media report.That's 388 minutes â or 6-1/2 hours â per person (if every person in the U.S. used social media).All together, that's 230,060 years we spent staring into the glaring screen of so-called sharing, instead of going outside and playing with our friends, like we're supposed to do in July!hat's 388 minutes â or 6-1/2 hours â per person (if every person in the U.S. used social media). All together, that's 230,060 years we spent staring into the glaring screen of so-called sharing, instead of going outside and playing with our friends, like we're supposed to do in July!