Reading from a tablet before bed may affect sleep quality

By Kathryn Doyle (Reuters Health) – - People who read from an iPad for 30 minutes before going to sleep felt less sleepy and had different electrical activity in the brain during sleep than those who read from a physical book, a recent study found. “Since light has an alerting effect, we predicted a lower sleepiness in the iPad condition at bedtime compared to the book condition,” said lead author Janne Gronli of the University of Bergen in Norway. The study included 16 nonsmok