The present study was conducted with the aim to assess the effect of 15 days SN on mental health, self-control, and mindfulness of adolescents’ school children. The findings of the present study showed that SN significantly improves adolescent school children’s self-control and mindfulness in comparison to the control group. However, there was not any significant change in mental health after SN intervention.
The finding of the current study showed significant improvement in self-control after SN in between-groups comparison and pre-post comparison. An intensive literature search showed no prior study to evaluate the effect of SN or yoga practice on adolescents’ self-control. As per our knowledge, this is the first study to assess the effect of yogic practice on the self-control of adolescents’ school children. This study is not directly comparable with the previous study. However, previously Ramadoss & Bose34 and Danielly & Silverthorne33 showed yoga improves self-control. However, these studies differ from the present study in terms of intervention and population. Ramadoss & Bose34 conducted research on vulnerable youth and intervention was a transformative life skills program that consists of yoga poses, pranayama, and meditation. While the population of Danielly & Silverthorne’s33 study was female inmates, and the intervention was yoga. Danielly & Silverthorne33 also reported that improvement in self-control after yoga was statistically insignificant.
The exact mechanism behind the improvement in self-control after SN or yoga intervention has not been yet understood clearly. However, earlier studies have shown that yoga enhances executive functions57,58. It also increases the volume of the frontal cortex that is associated with self-control and restriction of impulsivity59,60. Studies showed self-control is a high-level function that incorporates control of impulsivity, self-regulation, delay of gratification, executive function, and willpower which are basically control by the frontal cortex61,62. Therefore, an increase in the volume of the frontal lobe of the brain can be the possible mechanism behind the improvement of self-control after SN intervention.
Similarly, between groups and within-group analyses showed a significant improvement in MAAS-A score after SN. Previously study done by Gaiswinkler & Unterrainer, Erkin & Senuzun Aykar and Brisbon & Lowery also showed that yoga intervention significantly increases mindfulness35-37. However, the population of Gaiswinkler & Unterrainer35 was in the age range of 18 to 68 years and the design of the study was cross-sectional. Similarly, Erkin & Senuzun Aykar’s36 study participants were nursing professionals. While Brisbon & Lowery37 research participants were advance and beginner yoga practitioners in the age range of 21 to 65 years.
SN, itself is a part of mindfulness-based practice i.e. Yoga. The practice of yoga involves sustained attention to physical sensations, breathing, and mental activity, and periods of meditative awareness29. Yoga practice also increases sustain attention and selective attention39. These can be the possible reasons for improving mindfulness after SN.
The result of the current study showed no improvement in the mental health outcomes of school children after SN intervention. This finding is inconsistent with the results of earlier research. A prior study reported yoga significantly reduces adolescents’ anxiety, depression, and psychological distress63. A review by Hagen & Nayer64 also conformed yoga reduces stress, depression, and anxiety as well as improved the mental well-being of adolescents. However, the intervention of Frank et al.63 study was the transformative life skills program that compromises yoga postures, breathing practices, and meditation and the duration of intervention was an entire first semester of the school year. This inconsistency of the present study with prior studies could be because of a short period of intervention. In the future, prospective research can be conducted to observe the exact effect of SN on adolescent mental health and well-being.
Though the findings of the present study showed no improvement in mental health outcomes of adolescents’ school children after SN, a significant improvement in adolescents’ self-control and mindfulness are remarkable findings. Research has reported self-control is positively associated with academic performance, emotional well-being, and social relationship, whereas negatively correlated with substance abuse and criminal behavior17,18. Likewise, mindfulness is negatively associated with depression, anxiety, fatigue, substance abuse, and confusion, while positively correlated with better academic performance, life satisfaction, and self-esteem25,28,65. Thus, based on the results of the present study, the practice of SN can be given to teenagers’ school children to improve their self-control and mindfulness which could ultimately enhance their emotional and mental well-being as well as academic performance. It could also prevent and protect adolescents from involving in substance abuse and criminal behavior. Based on the present study, the mental health professionals can discuss the benefits of yoga in their clinic with the parents and teachers of adolescents having poor self-control, mindfulness, and psychological difficulties, and encourage them to arrange regular yoga sessions for their children.
Limitations of Study and suggestion for future study
The major limitations of the present study are research design, sample size, duration of the intervention, and assessment tools. The design of the current study was none randomize two arms design. This design is unable to minimize selection bias and the effect of confounding variables. Thus, randomized control trials can be conducted in the future to address the limitation of research design in the present research. The sample size of the present study was small. Thus, it would be difficult to generalize the finding of the present study. Future studies can be conducted with large sample size; even a multi-centric study can be conducted to assess the effect of SN on self-control, mindfulness, and mental health outcomes. The duration of the present study was only 15 days, which may not be enough to assess the exact effect of SN in self-control, mindfulness, and mental health outcomes of adolescent school children. Therefore, perspective research can be conducted in the future to assess the exact effect of SN. The present study was also limited by the tools; only self-reported questionnaires were used to assess the self-control, mindfulness, and mental health of adolescent school children. Future studies can be conducted using advanced tools like functional magnetic resonance imaging (fMRI) and electro encephalon graph (EEG) to assess the effect of SN in adolescent school children.