Modifiable lifestyle and psychosocial determinants of happiness among undergraduate medical and dental students in South India: a cross-sectional study
This cross-sectional study of South Indian medical and dental students identifies sleep quality, peer and family relationships, social circle size, academic satisfaction, extracurricular participation, and recreational drug use as key independent determinants of happiness, with sleep quality accounting for the largest share of explained variance.
Original paper licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This is an AI-generated explanation of the paper below. It is not written or endorsed by the authors. For technical accuracy, refer to the original paper. Read full disclaimer
Happiness is often treated as a feeling that simply happens to us, a fleeting mood that rises and falls with the news of the day. However, in the field of psychology, researchers increasingly view it as a measurable state of being, distinct from the absence of mental illness. Just as a person can be free of a broken bone but still feel weak or out of shape, a student can be free of a diagnosed disorder yet still lack a deep sense of contentment. For students training to become doctors and dentists, this distinction is vital. Their education is a marathon of intense academic pressure, early exposure to human suffering, and rigid performance standards. While much attention has been paid to the stress and burnout these students face, less is known about what actively builds their happiness. Understanding the specific, changeable habits and relationships that fuel a sense of well-being offers a different path forward: not just fixing what is broken, but strengthening what works.
In a recent study conducted at a single academic institution in South India, researchers set out to map the landscape of happiness among undergraduate medical and dental students. They gathered a group of 496 students, ranging in age from their early twenties, and asked them to complete a detailed survey designed to measure their overall sense of happiness. The survey, known as the Oxford Happiness Questionnaire, asked participants to rate their agreement with 29 different statements about their lives, feelings, and outlook. The researchers then took these happiness scores and looked for connections with a wide array of factors in the students' lives, including how they slept, how they spent their free time, their relationships with family and friends, their satisfaction with their grades, and their use of substances like alcohol or drugs. The goal was to see which of these factors stood out as independent drivers of happiness, even when all the other variables were taken into account.
The results painted a clear picture of what matters most. The single strongest predictor of a student's happiness score was the quality of their sleep. Students who rated their sleep as poor or very poor had significantly lower happiness scores than those who slept well, and this difference was the largest of any factor the team measured. It was not simply about how many hours they slept, but how restful that sleep felt. Beyond the bedroom, the social world of the student played a massive role. Those who reported having a large circle of friends, good relationships with their peers, and a strong, supportive bond with their family tended to be happier. Interestingly, the size of the friend group mattered; having a large circle was linked to higher happiness scores compared to having a small one.
Academic life also played a direct role, but not in the way one might expect. The study found that a student's satisfaction with their recent exam performance was linked to their happiness, regardless of whether they were studying medicine or dentistry. Students who felt satisfied with how they performed on their exams reported higher happiness levels. Similarly, those who participated in extracurricular activities outside of their coursework were happier than those who did not. These activities seemed to provide a necessary outlet and a sense of engagement beyond the classroom.
The study also highlighted what does not necessarily drive happiness in this specific group. Factors that are often assumed to be critical, such as a student's gender, their age, their body weight, or whether they lived in a hostel versus their own home, showed no independent link to happiness once the other factors were considered. Even physical activity, which is often touted as a universal mood booster, did not show a direct connection to happiness scores in this analysis. The researchers also looked at substance use. They found that students who used recreational drugs had lower happiness scores. The link with alcohol use was less clear; while it appeared to lower happiness in the initial group of students with complete data, this connection weakened and became less certain when the researchers included more students in their analysis, suggesting it may not be a primary driver of happiness in the same way sleep or relationships are.
One of the most intriguing findings was how the impact of sleep quality differed depending on the student's course of study. The data suggested that the relationship between sleep and happiness was not identical for medical students and dental students; the effect was stronger for one group than the other. This nuance indicates that while the general rules of well-being apply to everyone, the specific weight of those rules can shift based on the unique pressures of different training paths.
Ultimately, this research offers a practical roadmap for institutions and students alike. It suggests that to support the well-being of future doctors and dentists, the focus should shift toward the modifiable parts of their lives. Improving sleep hygiene, fostering strong peer connections, encouraging participation in non-academic activities, and creating an environment where students feel satisfied with their academic progress appear to be the most effective levers for increasing happiness. These are not abstract concepts but daily realities that can be shaped. By prioritizing the quality of rest and the strength of relationships, educational institutions can help students build a foundation of well-being that sustains them through the rigors of their training. The study confirms that happiness is not a mystery reserved for the lucky few, but a state that is deeply connected to the everyday choices and environments that surround us.
Drowning in papers in your field?
Get daily digests of the most novel papers matching your research keywords — with technical summaries, in your language.