Nomophobia is the fear of being out of mobile phone contact. It is, however, arguable that the word 'phobia' is misused and that in the majority of cases it is only a normal anxiety. The term, an abbreviation for "no-mobile-phone phobia", was coined during a 2010 study by the UK Post Office who commissioned YouGov, a UK-based research organization to look at anxieties suffered by mobile phone users. The study found that nearly 53% of mobile phone users in Britain tend to be anxious when they "lose their mobile phone, run out of battery or credit, or have no network coverage". The study found that about 58% of men and 47% of women suffer from the phobia, and an additional 9% feel stressed when their mobile phones are off. The study sampled 2,163 people. Fifty-five percent of those surveyed cited keeping in touch with friends or family as the main reason that they got anxious when they could not use their mobile phones. The study compared stress levels induced by the average case of nomophobia to be on-par with those of "wedding day jitters" and trips to the dentists. Another study found that out of 547 male, undergraduate students in Health Services that 23% of the students were classified as nomophobic while an additional 64% were at risk of developing nomophobia. Of these students, ~77% checked their mobile phones 35 or more times a day.
More than one in two nomophobes never switch off their mobile phones. The study and subsequent coverage of the phobia resulted in two editorial columns authored by those who minimize their mobile phone use or choose not to own one at all, treating the condition with light undertones of or outright disbelief and amusement.
Currently, scholarly accepted and empirically proven treatments are very limited due to it's relatively new concept. However, promising treatments include cognitive-behavioral psychotherapy and combined with pharmacological interventions.  Treatments using tranylcypromine and clonazepam were successful in reducing the effects of nomophobia. 
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- Dixit, Sanjay; Shukla, Harish; Bhagwat, AK; Bindal, Arpita; Goyal, Abhilasha; Zaidi, Aliak; Shrivastava, Akansha (2010). "A Study to Evaluate Mobile Phone Dependence Among Students of a Medical College and Associated Hospital of Central India". Indian Journal of Community Medicine 35 (2): 339–41. doi:10.4103/0970-0218.66878. PMC 2940198. PMID 20922119.
- "13m Britons have 'no mobile phobia'". Metro.co.uk. 2008-03-30. Retrieved 2011-08-10.
- Bivin J. B., Mathew, P., Thulasi P. C., Philip, J. (2013). Nomophobia - Do We Really Need to Worry About? Reviews of Progress. 1(1).
- My Name Is Mo R., And I Am A Nomophobe, CBSnews.com. February 11, 2009. Retrieved August 2011
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- Column: Nomophobia: "No more phobia". siude.com. March 4, 2008
- Bragazzi, N. L. & Puenete G. D. (2014). A proposal for including nomophobia in the new DSM-V. Psychology Research and Behavior Management 7. 155-160.
- King, A. L. S., Valença, A. M., & Nardi, A. E. (2010). Nomophobia: the mobile phone in panic disorder with agoraphobia: reducing phobias or worsening of dependence?. Cognitive and behavioral neurology, 23(1), 52-54