This article provides a brief overview of the changes in the classification categories in mood disorders, viz. bipolar disorders and depressive disorders, from the International Classification of Diseases (ICD), ICD-10 to ICD-11 and its comparison with the Diagnostic and Statistical Manual of Mental Disorders, DSM-5. ICD-11 was implemented in January 2022, and as of February 2023, the World Health Organization (WHO) reported that 64 countries were in various stages of implementing the ICD-11.

Background: Previous studies have shown an association between obesity and psychiatric disorders, primarily focusing on adults and the elderly. However, limited research has been conducted on students in this area. This study aimed to investigate the relationship between psychiatric disorders in students and obesity, as measured by body mass index (BMI). Materials and methods: This retrospective cross-sectional study utilized data from the Child and Adolescent Excellence Health Centre and the student care center at the Center of Excellence for Adolescent Health and Development, SS Hospital, IMS, BHU. A total of 7,548 students from both centers were enrolled between April 2018 and June 2022, of which 1,795 met the selection criteria and were included in the study. The final diagnosis of psychiatric disorders was based on the tenth revision of the International Statistical Classification of Diseases and Related Health Problems (ICD-10) diagnostic criteria for research (DCR) criteria. Obesity status was determined using BMI and waist circumference (WC). Double-tailed tests were employed to assess the correlation between age, BMI, gender, depression, and anxiety. Results: The mean age of the participants was 18.81 ± 4.01 years, with a majority being males (n = 931, 51.9%) compared to females (n = 864, 48.1%). Variables such as age (p < 0.001), marital status (p < 0.001), and education (p < 0.001) were significantly associated with BMI. A significant difference was observed in the mean BMI scores between participants with and without depression and anxiety. BMI showed a positive correlation with age, depression, and anxiety. Conclusion: Obesity appears to be associated with a higher likelihood of depression and anxiety among students compared to individuals with underweight or normal BMI.

In the recent decade, there has been a noted transformation in the use of the internet across the globe in all age-groups. With the advent of digitalization, there has been a rapid flux in internet usage patterns and problems of internet addiction among teenagers and young people due to insufficient personal and social maturity, novelty seeking, and a noncritical attitude toward self and others. This study aimed to understand the patterns and prevalence of internet use and factors leading to internet use among adolescents in an urban city in Northeast India. A cross-sectional study was conducted on 480 students from 9th to 12th grades from a private English medium school using a purposive sampling method. The study utilized semistructured questionnaires to collect the data. The majority of the respondents were male (67.3%) and belonged to the age-group of 15–16 years (60.4%). More than two-thirds of the respondents (73.5%) had used the internet for >2 years, and daily usage was the most common (41.9%). The most frequently used online applications were search engines (49%) and social networking (41%). Findings indicate both positive and negative factors leading to increased use of the internet. A significant number used it to learn new things, develop new interests, and update their knowledge, while passing time without any constructive purpose, coping with stress, and becoming socially isolated were negative consequences. Online gaming has been a common factor in internet use, which could become a behavioral addiction if not checked during adolescence.

Catatonia is a marked disturbance in the voluntary control of movements, characterized by several of the following: extreme slowing or absence of motor activity, mutism, purposeless motor activity unrelated to external stimuli, assumption and maintenance of rigid, unusual, or bizarre postures, resistance to instructions or attempts to be moved, or automatic compliance with instructions. A 12-year-old boy presented with this presentation and was planned for a lorazepam challenge test (4 mg IV, 30-minute intervals) and clonazepam (0.25 mg as needed), along with nutritional correction. The patient improved completely on the second day. The patient had first visited a private pediatrician for this condition, but he did not improve with lorazepam (1.5 mg daily dosing). The patient had a computed tomography (CT) brain finding—a hypodense area of attenuation close to the cerebrospinal fluid (CSF) at the left cerebellar hemisphere. It is a matter of debate whether the catatonia is of organic origin or something else.

A prolonged measles virus infection causes the unusual slow-progressing degeneration of the central nervous system known as subacute sclerosing panencephalitis (SSPE). This illness usually manifests in early stages of adolescence, progresses slowly, and has a dismal prognosis. Usually, there is a 6–8 years latent interval between measles infection and SSPE. It progresses gradually and finally results in death. The measles virus may induce an aberrant immune response that results in brain inflammation and this serious disease. Because SSPE is uncommon and sometimes misunderstood, it can be extremely challenging to diagnose. To arrive at a diagnosis, a complete examination and full history are required. Here we present a case of a 12-year-old girl with SSPE who visited a tertiary care hospital in Assam, India.

Japanese encephalitis (JE) is a preventable cause of mosquito-borne encephalitis. Encephalitis is a state of inflammation of the brain parenchyma, commonly resulting from either an infectious cause or when the body's immune system gets activated inappropriately against the neural antigens. Most human infections of the JE virus are asymptomatic or result in only mild symptoms. Psychiatric symptoms, in conjunction with neurological features, may be seen in the acute phase and more commonly during the convalescent period. A case of JE has been reported here in which the patient presented with irrelevant talk, suspiciousness, and verbally and physically abusive behavior, with a history of fever eleven days before presentation. He was started on tab. quetiapine 50 mg and levetiracetam 1 gm, and there was near complete remission after 10 days. The uniqueness of this case is the presence of psychotic symptoms with intact sensorium and cognition, and there was no amnesia.

Alice in Wonderland is a classic children's tale written by Lewis Carroll, published in 1865. Alice slips into a fantastical dream while on her afternoon nap, where under the guise of childlike imagination, several nuances of psychology and psychiatry can be understood. Alice's primitive identity concept and her lack of logical reasoning, interspersed with certain perceptual disturbances, the irrationality of the primary process of thinking and symbolic representation of existentialist, and absurdist themes are explored through this paper.