I WONDER whether you will stay completely still until you reach the end of this article. If you do, then perhaps I have done a good job - fidgeting, as you might expect, is a pretty reliable indicator of waning attention. But is there more to it? For those incessant pen-clickers, hair-twirlers and foot-tappers among us, the urge to fidget is irresistible. The popularity of the fidget spinner is a case in point: earlier this year, variants of it made up every one of the top 10 bestselling toys on Amazon. Many of these gadgets come with claims they can help children with ADHD (attention deficit hyperactivity disorder), anxiety or autism. Some people say fidgeting aids focus, or could even boost efforts to lose weight. So should we all harness the powers of restlessness?
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