NEXT (New Zealand) - - Body News -

Pro­vid­ing an­other rea­son to ditch de­vices in the bed­room, a study pub­lished in Psy­cho­log­i­cal Re­ports had nine peo­ple spend 10 nights in a sleep lab­o­ra­tory, where they read on an iPad for five nights be­fore bed, and on the other five nights read print. Ev­ery night, they read in a dimly lit room un­til they felt ready to go to sleep. When par­tic­i­pants read iPads in­stead of print, they chose a later bed­time and went to sleep later. Af­ter us­ing de­vices, they also had sup­pressed lev­els of mela­tonin and re­ported feel­ing less tired in the evening and less alert the morn­ing af­ter. Study co-au­thor Jeanne Duffy says, “These de­vices are not be­nign. They have bi­o­log­i­cal ef­fects on us.”

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