A recent study by the Queensland University in Australia discovered what we've already pretty much known from several years of smartphone ownership, which is that people's reliance on their cellphones can often take the form of an addiction. Diana James and her colleagues analyzed the behavior of mobile owners 45-and-under in situations where they were separated from their phones, and found that many displayed the same withdrawal symptoms common to smoking, gambling, or eating addictions: lower self esteem, nervousness, and in some cases, even deep agitation. Besides emotional problems, excessive calling and texting can lead to steep cellphone bills and even the occasional repetitive stress injury, warns James, who says that if you're using your phone to make yourself feel better at the expense of your job or your health, then you may have a problem. Don't worry, though, you're not alone...

[Via textually]