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.
Why some 13-year-olds check social media 100 times a day. Let's just put nine hours in context for a second. That's more time than teens typically spend sleeping, and more time than they spend with their parents and teachers. And the nine hours does not include time spent using media at school or for their homework.