Background: World is ever changing due to advancement in realm of science and technology, one such advancement is in field of smart phones. The ubiquity of smart phone technology raises concern for its addiction among adolescents and its relationship with quality of sleep, mental and physical health problems. Objective of the study was to investigate magnitude of smart phone addiction and evaluate the impact of smart phone addiction on their mental health and sleep quality.Methods: A cross‑sectional study was conducted on sample comprising of 587 students of repudiated school. Students were assessed with a specially designed proforma and Smart phone addiction scale (SAS) which was self‑administered by the students. Subjects were classified into smartphone non-user group, a low smartphone user group and a high smartphone user group. Subsequently depression anxiety and stress sub scores (DASS-21) scale were administered to asses associated behaviour problems, investigate sleep quality Pittsburgh sleep quality inventory was administered (PSQI).Results: Out of 587 subjects who completed the questionnaires 12.9% (n=76) were not using smart phones, (n=315) 53.62% were low users and (n=196) 33.3% were high users of Smart phone as estimated by Smart Phone addiction scale. Those who used smart phone excessively had high Global PSQI scores and DASS-21scores in terms of depression, anxiety and stress.Conclusions: With increasing popularity of smart phones, youths spend significant time on smart phone thereby developing addictive tendencies. This study concludes that youths are not only addicted but are also developing significant sleep and behaviour problems owing to excessive smart phone usage.

Evidence based primarily on a small number of either prospective or retrospective case studies that included a small number of participants and often used non-validated outcome measures for a short period of follow-up, suggests that antidepressants, particularly SSRIs, show improvement of aggression and self-injurious behaviour on average in less than 50% of cases and the rest show either no improvement or deterioration. The effect is most pronounced in the presence of an underlying anxiety or an associated diagnosis of obsessive-compulsive disorder. Most studies have highlighted the concern regarding adverse effects.

Presently, there is RCT-based evidence for risperidone to be effective in both adults and children; however, this treatment carries a certain amount of risk associated with adverse effects. There is also evidence to support the use of other antipsychotics, primarily atypicals, but the evidence is based on noncontrolled case studies. There is currently not enough evidence available to recommend specific medication for specific behaviour problems. Before prescribing medication, clinicians should carry out a thorough assessment of behaviour, including its causes and consequences, and draw up a formulation providing the rationale for the prescribed intervention after considering all medication- and nonmedication-based management options.

The current evidence lends some support for the use of lithium and some antiepileptic mood stabilizer medication for the management of behaviour problems in adults with ID. However, because most studies reviewed here are riddled with obvious methodological constrains, the findings have to be interpreted with caution.

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