Sorry. It's just something I've known for years. Here's the link to the article, and the full-text below.
By the time she was 18, Cheryl Fike had moved nine times because of her father's job. For Fike, every move was sad, distressing and alienating.
“I remember thinking, ‘Oh no, not again,’ when they’d tell me we had to move,” says Fike, a 52-year old engineer from Galt, Calif. “I was shy and reserved so it was hard for me to make friends. I mostly spent time with my horse and each time I’d worry that we were going to move somewhere where I couldn’t keep her. It made me totally depressed. I think those moves are part of the reason I have panic attacks now.”
Psychologists have known for years that moves can be distressing for kids. But a new study shows that the impact on some adolescents may be far more devastating than anyone thought. The study, published in the Archives of Psychiatry, found that kids aged 11 to 17 were twice as likely to attempt suicide if their families moved three or more times compared to those who had never moved.
And, if the family moved more than 10 times, the children were four times as likely to attempt suicide compared to those who had never moved.
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*sigh* I attempted when I was 17, and we've moved a lot of times by then. It seems they're also counting houses/residences, not just cities/countries so that's even more. Of course, it was more living alone in Malaysia and not belonging that mostly triggered my depression and attempt.
Seriously, though, I would think this as common sense...