Project – Influence of Social Media Health Information on Preventive Health Behaviour Among Secondary School Students in Lagos Education District V

CHAPTER ONE

INTRODUCTION

1.1 Background of the Study

The rapid advancement of digital technology has significantly transformed the way individuals access, share, and use information, particularly information relating to health and wellbeing. In recent years, social media has emerged as one of the most influential channels of communication, especially among adolescents and young adults. Platforms such as Facebook, Instagram, TikTok, YouTube, WhatsApp, and X (formerly Twitter) have become important sources through which young people obtain information, exchange experiences, and develop perceptions regarding health-related issues. The increasing use of social media among adolescents presents both opportunities and challenges for public health promotion because online health information can encourage positive preventive behaviours while also exposing users to misinformation and harmful practices.

Health information plays a critical role in shaping individual decisions and behaviours. Access to accurate and understandable health information enables individuals to recognize health risks, adopt preventive measures, seek appropriate healthcare services, and make informed choices regarding their wellbeing. The World Health Organization (WHO) emphasizes that health literacy, which includes the ability to access, understand, evaluate, and apply health information, is essential for improving health outcomes and promoting individual empowerment (World Health Organization [WHO], 2021). Among adolescents, effective health communication is particularly important because behaviours established during this developmental stage often influence health outcomes throughout adulthood.

Adolescence represents a critical period characterized by rapid physical, emotional, cognitive, and social development. During this stage, young people begin to make independent decisions regarding lifestyle choices, personal hygiene, nutrition, physical activity, sexual health, substance use, and disease prevention. However, adolescents may also engage in risky behaviours due to peer influence, experimentation, inadequate knowledge, or exposure to inaccurate information. Consequently, providing reliable health information through accessible communication channels is essential for promoting healthy behaviours among secondary school students.

Social media has changed the traditional approach to health education by moving beyond one-way communication from healthcare professionals to interactive and participatory information exchange. Unlike conventional health education methods such as classroom lectures, printed materials, and community campaigns, social media allows users to receive immediate information, interact with health experts, participate in discussions, and share health experiences with peers. This interactive nature makes social media a potentially powerful tool for improving health awareness and encouraging preventive health behaviours among adolescents (Moorhead et al., 2013).

Preventive health behaviour refers to actions undertaken by individuals to reduce the risk of disease, maintain good health, and improve overall wellbeing. Among secondary school students, preventive health behaviours include maintaining personal hygiene, consuming healthy diets, engaging in physical activity, avoiding harmful substances, practicing safe sexual behaviours, adhering to vaccination recommendations, managing stress, and seeking appropriate healthcare when necessary. The adoption of these behaviours depends greatly on individuals’ knowledge, attitudes, beliefs, and exposure to health-related information.

The influence of social media health information on preventive health behaviour can be explained through behavioural theories such as the Health Belief Model (HBM) and Social Cognitive Theory (SCT). The Health Belief Model proposes that individuals are more likely to adopt preventive behaviours when they perceive themselves as vulnerable to a health problem, understand the seriousness of the condition, recognize the benefits of preventive actions, and perceive fewer barriers to behaviour change (Rosenstock et al., 1988). Similarly, Bandura’s Social Cognitive Theory highlights the role of observation, social interaction, self-efficacy, and environmental influences in shaping human behaviour (Bandura, 1986). Through social media, adolescents observe health-related content, interact with peers, and develop beliefs that may influence their preventive practices.

Globally, young people are among the most active users of social media platforms. Research has shown that adolescents increasingly rely on digital platforms for information about health, fitness, nutrition, mental health, sexual health, and disease prevention. Social media has therefore become an important environment where health beliefs and behaviours are developed. However, while social media provides opportunities for health promotion, concerns exist regarding the accuracy, credibility, and quality of health information available online. Adolescents may encounter misleading health claims, unverified remedies, harmful lifestyle trends, and misinformation that may negatively affect their health decisions (Chou et al., 2018).

The increasing dependence on social media for health information creates the need to examine whether exposure to online health content actually translates into improved preventive health behaviours. Access to information does not automatically guarantee behaviour change because individuals may interpret information differently based on personal beliefs, peer influence, cultural background, and perceived relevance. Therefore, assessing the relationship between social media health information exposure and preventive health behaviour is necessary to determine whether digital health communication effectively promotes healthier choices among adolescents.

In Nigeria, social media use among young people has expanded rapidly due to increased access to smartphones, affordable internet services, and improved digital connectivity. Nigerian adolescents increasingly use platforms such as WhatsApp, Instagram, TikTok, YouTube, and Facebook for communication, entertainment, education, and information seeking. This widespread adoption of social media provides an opportunity for health educators and public health organizations to reach young people with preventive health messages.

However, Nigeria continues to experience several adolescent health challenges despite increased access to information. These challenges include poor nutrition practices, inadequate physical activity, poor personal hygiene, sexually transmitted infections, mental health concerns, substance use, and limited awareness of preventive healthcare practices. The existence of these challenges raises questions about whether the health information accessed through social media is accurate, sufficient, and effective in influencing positive health behaviours among Nigerian adolescents.

Secondary school students represent an important population for health promotion because habits developed during adolescence often continue into adulthood. Schools provide structured environments where health education can be integrated with digital health initiatives to improve students’ knowledge and behaviours. However, understanding students’ sources of health information and the influence of social media on their health decisions is necessary for designing effective school-based interventions.

Lagos State provides a unique context for examining the influence of social media health information due to its high population density, urban lifestyle, technological advancement, and widespread internet accessibility. Students in Lagos are among the most exposed to digital technologies because of the availability of smartphones, internet services, and social media platforms. Despite this digital exposure, differences may exist in how students access, evaluate, and apply health information obtained online.

Lagos Education District V comprises several secondary schools located within an urban educational environment where students are increasingly exposed to digital communication platforms. The district provides an appropriate setting for examining how social media health information influences preventive health behaviours among adolescents. Understanding students’ experiences with social media health content may provide insights into the effectiveness of digital platforms as tools for health promotion.

Previous studies have demonstrated that social media interventions can improve health knowledge and encourage positive behavioural changes when information is accurate, engaging, and culturally appropriate. However, other studies have highlighted concerns regarding misinformation, lack of professional oversight, and unequal ability among users to evaluate online health information effectively (Chou et al., 2018). These conflicting findings indicate the need for context-specific research examining the actual influence of social media health information on adolescents’ preventive behaviours.

Although several studies have investigated social media use among young people, limited attention has been given to how health-related information obtained through social media influences preventive health behaviours among secondary school students in Lagos Education District V. This creates an important research gap, particularly regarding whether exposure to online health information contributes to improved hygiene practices, healthy lifestyles, disease prevention behaviours, and health-seeking decisions.

Therefore, this study seeks to assess the influence of social media health information on preventive health behaviour among secondary school students in Lagos Education District V. The findings will provide valuable evidence for educators, healthcare professionals, policymakers, and digital health promoters on how social media can be effectively utilized as a tool for adolescent health education and behaviour change.

1.2 Statement of the Problem

The emergence of social media has transformed health communication among adolescents by providing easy access to a wide range of health-related information. Secondary school students now rely increasingly on digital platforms for information about nutrition, hygiene, disease prevention, physical fitness, mental health, sexual and reproductive health, and general wellbeing. While this increased access presents opportunities for improving health knowledge and encouraging preventive behaviours, concerns remain regarding the quality, accuracy, and influence of health information obtained through social media platforms.

One major challenge associated with social media health information is the widespread circulation of inaccurate, misleading, or incomplete health messages. Unlike traditional health education channels where information is usually developed and reviewed by health professionals, social media allows virtually anyone to create and share health content. Adolescents, who may have limited skills for evaluating online information, can easily accept false claims, harmful health trends, or unscientific advice as reliable information. Exposure to misinformation may negatively influence their health decisions and preventive practices.

Although adolescents have increased access to health information through social media, this does not necessarily guarantee improved preventive health behaviours. Many young people continue to demonstrate unhealthy practices such as poor dietary habits, inadequate physical activity, poor personal hygiene, risky sexual behaviours, and limited engagement in preventive healthcare activities. This situation raises concerns about whether social media health information is effectively influencing adolescents’ attitudes and behaviours toward health promotion and disease prevention.

In Nigeria, the rapid growth of internet access and smartphone usage has increased social media engagement among secondary school students. Young people spend considerable time on platforms such as TikTok, WhatsApp, Instagram, YouTube, and Facebook, where they encounter various forms of health-related content. However, the extent to which this information contributes to positive preventive health behaviour remains unclear. Some students may benefit from online health education, while others may be influenced by inaccurate information, peer pressure, or unhealthy digital trends.

Furthermore, adolescents’ ability to benefit from social media health information depends on several factors, including their level of health literacy, critical evaluation skills, socioeconomic background, parental guidance, school health education, and access to credible sources. Students who lack adequate health literacy may struggle to differentiate between trustworthy health information and misleading content. Therefore, understanding how students perceive and use health information obtained through social media is essential for developing effective digital health promotion strategies.

Lagos State, being Nigeria’s most urbanized and technologically connected state, has experienced rapid growth in social media use among young people. Secondary school students within Lagos Education District V are exposed to diverse digital platforms and online information sources. However, urban exposure to technology does not automatically translate into improved health outcomes. Despite access to health information online, students may continue to experience challenges related to unhealthy lifestyles, inadequate preventive practices, and limited application of health knowledge in daily life.

Another concern is the limited integration of social media into formal school health education programmes. While schools provide health education through subjects such as basic science, biology, and social studies, the increasing role of digital platforms in shaping students’ knowledge and behaviours requires greater attention. Without understanding the influence of social media health information, educators and health professionals may miss opportunities to use digital platforms effectively for adolescent health promotion.

Previous studies have examined social media usage among young people; however, many have focused primarily on general usage patterns, academic effects, or social relationships rather than its specific influence on preventive health behaviour. There remains insufficient evidence regarding whether health information accessed through social media platforms contributes to healthier behaviours among secondary school students, particularly within the Lagos Education District V context.

The absence of adequate empirical evidence creates challenges for policymakers, school administrators, and public health practitioners seeking to develop effective adolescent health interventions. Without understanding the relationship between social media health information exposure and preventive health behaviour, health promotion efforts may not adequately address the realities of students’ digital information environments.

Therefore, this study is necessary to assess the influence of social media health information on preventive health behaviour among secondary school students in Lagos Education District V. The findings will provide evidence on students’ exposure to online health information, their ability to utilize such information, and the extent to which social media contributes to improved preventive health practices.

1.3 Aim of the Study

The aim of this study is to assess the influence of social media health information on preventive health behaviour among secondary school students in Lagos Education District V.

1.4 Objectives of the Study

The specific objectives of the study are to:

1. Determine the level of exposure of secondary school students in Lagos Education District V to health information through social media platforms.
2. Assess students’ perceptions regarding the credibility and usefulness of social media health information.
3. Examine the level of preventive health behaviour among secondary school students in Lagos Education District V.
4. Determine the relationship between exposure to social media health information and preventive health behaviour among secondary school students.
5. Identify factors influencing students’ use of social media health information for health-related decision-making.

1.5 Research Questions

The study will answer the following research questions:

1. What is the level of exposure of secondary school students in Lagos Education District V to health information through social media?
2. How do students perceive the credibility and usefulness of health information obtained from social media platforms?
3. What is the level of preventive health behaviour among secondary school students in Lagos Education District V?
4. Is there a relationship between social media health information exposure and preventive health behaviour among secondary school students?
5. What factors influence students’ use of social media health information in making health-related decisions?

1.6 Research Hypothesis

The following null hypothesis will be tested at a 0.05 level of significance:

H₀: There is no significant relationship between exposure to social media health information and preventive health behaviour among secondary school students in Lagos Education District V.

1.7 Significance of the Study

This study will be significant to students, school administrators, health educators, policymakers, public health practitioners, parents, and researchers.

Secondary School Students

The findings of this study will help students understand the importance of critically evaluating health information obtained from social media platforms. It may encourage students to seek information from credible health sources and adopt healthier preventive behaviours. Increased awareness of reliable digital health resources may empower students to make informed decisions regarding their health.

School Administrators and Teachers

The study will provide useful information to school administrators, teachers, and health education instructors regarding students’ use of social media for health information. The findings may support the development of school-based digital health education programmes that integrate reliable online resources into existing health education activities.

Health Educators and Public Health Professionals

Public health professionals may benefit from the findings by understanding how social media can be effectively used as a platform for adolescent health promotion. The study may assist health educators in designing targeted online campaigns that address students’ health needs and counter misinformation.

Parents and Guardians

The findings will provide parents and guardians with insight into the influence of social media on adolescents’ health knowledge and behaviours. This may encourage greater parental guidance and support in helping young people navigate online health information responsibly.

Government and Policy Makers

The study may contribute useful evidence for policymakers involved in adolescent health, digital literacy, and education planning. Findings may guide the development of policies promoting responsible use of digital platforms for health communication among young people.

Researchers and Academic Institutions

The study will contribute to existing literature on digital health communication, adolescent health promotion, and preventive health behaviour. It will serve as a reference material for future researchers investigating the relationship between technology use and health outcomes among young people.

1.8 Scope of the Study

This study focuses on assessing the influence of social media health information on preventive health behaviour among secondary school students in Lagos Education District V.

The study will examine students’ exposure to health-related information on social media platforms, perceptions of online health information credibility, and preventive health behaviours relating to personal hygiene, nutrition, disease prevention, physical activity, and general health practices.

The study population will consist of selected secondary school students within Lagos Education District V. The study will not include primary school pupils, university students, teachers, or other community members.

1.9 Operational Definition of Terms

Social Media

Digital communication platforms that allow users to create, share, and interact with content, including Facebook, Instagram, TikTok, WhatsApp, YouTube, and X.

Social Media Health Information

Health-related messages, educational materials, advice, videos, articles, and discussions accessed through social media platforms.

Preventive Health Behaviour

Actions taken by individuals to maintain health and prevent diseases, including proper hygiene, healthy eating, physical activity, vaccination awareness, and disease prevention practices.

Health Information Credibility

The extent to which students perceive health information obtained from social media as accurate, trustworthy, and reliable.

Health Literacy

The ability of individuals to access, understand, evaluate, and apply health information for making appropriate health decisions.

Secondary School Students

Students enrolled in junior and senior secondary schools within Lagos Education District V.

Influence

The extent to which exposure to social media health information affects students’ knowledge, attitudes, and preventive health behaviours.

Digital Health Communication

The use of digital technologies, including social media platforms, to share health information and promote healthy behaviours.

Lagos Education District V

An educational administrative district in Lagos State, Nigeria, comprising selected secondary schools where the study will be conducted.

Project – Influence of Social Media Health Information on Preventive Health Behaviour Among Secondary School Students in Lagos Education District V