Using a smartphone at night saps workers’ energy24th January 2014
If you use your smartphone late at night to solve business problems, it'll drain your energy levels the following day.
At least, this is according to research co-authored by a Michigan State University (MSU) business scholar in the US, who found those who monitored their smartphones for business reasons from 21:00 onwards were more tired and less engaged the next day.
The study analysed 82 upper-level managers for two weeks. Researchers also surveyed 161 employees in a variety of occupations, from manufacturing and accounting, to nursing and dentistry.
MSU assistant professor of management Russell Johnson said: "Smartphones are almost perfectly designed to disrupt sleep.
"Because they keep us mentally engaged late into the evening, they make it hard to detach from work so we can relax and fall asleep."
The study revealed the devices had a more negative effect than watching television or using laptops or tablets late at night.
Smartphones also emit blue light, which is known to hinder melatonin – a chemical in the body that promotes sleep.
The study will be published in the research journal Organizational Behavior and Human Decision Processes.
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Posted by The EnerGenie