During a study conducted at Leuven University, Belgium, 2,500 youngsters, aged 13 to 16, were asked how often they were awakened by incoming text messages on their cellular phones and how tired they felt at various times.
अध्ययन के लेखक कहते हैं कि मुफ्त में किए गए ऐसे काम “‘ गोंद ’ की तरह हैं, जो समाज में लोगों को एकता के बंधन में बाँधते हैं । ”