Smartphone Use for Business at Night Not So Smart?

Late evening use disrupts sleep and may hurt productivity, study suggests.

By Alan Mozes- HealthDay Reporter


FRIDAY, Feb. 7, 2014 (HealthDay News) — As smartphones have become the must-have technology for millions of Americans, the opportunity to call, text or email is often just an arm’s length away — day or night. But new research cautions that using smartphones to attend to work after hours can actually disrupt sleep and undermine overall productivity, leaving workers tired and unfocused during the day. “What we have is a double-whammy effect,” said study co-author Russell Johnson. “On the one hand, when people are using their phones to conduct work late into the night then they’re less able to detach and disassociate from their job, which makes sleeping more difficult and can lead to mental fatigue.

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