People who are so attached to their iPhone that they feel separation anxiety when it's not nearby can have their ability to think affected.
University of Missouri researchers found that iPhone users tasked with solving a series of puzzles did better at them when they had their phones with them.
When they didn't have their phones, their performance was worse, and they also had elevated heart rate and blood pressure and anxiety.
If you'd think the researchers would suggest that people try to wean themselves from being so attached to their phones, you'd be wrong.
They suggest instead that iPhone users who are that attached to them should make sure they have their phone with them when then take tests, go to meetings or during other activities that require a lot of attention.
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