Health and well-being represent critical challenges confronting the world, characterized by complex and interconnected issues that hinder sustainable development efforts which is elaborately discussed in the paper. Despite advancements in medical science and healthcare delivery, persistent disparities in access to essential health services persist, particularly among marginalized communities in low- and middle-income countries.

Concurrently, the global burden of infectious diseases, non-communicable diseases, and emerging health threats continues to pose significant challenges to public health systems worldwide. In response, the United Nations (UN) has spearheaded initiatives to address these obstacles through the Sustainable Development Goals (SDGs), notably emphasizing SDG 3: Good Health and Well-being.

This abstract delves into the multifaceted nature of global health challenges and examines the UN's multifaceted approach to combat them. It explores the pivotal role of comprehensive healthcare systems, preventative measures, and the promotion of equitable access to healthcare services in fostering population health and well-being. Furthermore, it underscores the imperative of international cooperation, multi-stakeholder partnerships, and innovative strategies to overcome health obstacles and advance the agenda for a healthier, more resilient world.

Through an analysis of UN-led initiatives, collaborative efforts, and progress indicators, this abstract provides insights into the achievements made and the ongoing challenges in addressing health and well-being as a major barrier to sustainable development. It also underscores the critical importance of sustained commitment and collective action to ensure that health remains a central focus in global development agendas.

Introduction
In the contemporary landscape, the world faces a myriad of challenges concerning public health, marked by a notable increase in health hazards, declining health standards, and persistent hunger epidemics. These issues are exacerbated by a combination of factors, including rapid urbanization, environmental degradation, and widening socio-economic disparities. The consequences of these challenges are profound, impacting communities worldwide and underscoring the urgent need for coordinated global action.

Central to addressing these pressing concerns is the United Nations' Sustainable Development Goal 3:
Good Health and Well-being. This goal serves as a comprehensive framework designed to guide international efforts in tackling health-related issues and ensuring universal access to essential healthcare services. SDG 3 encompasses a broad spectrum of initiatives, ranging from combating infectious diseases and improving maternal and child health to promoting mental well-being and reducing non-communicable diseases. Moreover, the UN recognizes the intrinsic link between health and other aspects of sustainable development, emphasizing the importance of addressing underlying social, economic, and environmental determinants of health.

Through targeted interventions and collaborative partnerships, the UN aims to mitigate the impacts of health crises and hunger epidemics, ultimately striving to create a healthier, more resilient global community where every individual can thrive and fulfill their potential.

History
Over the last few decades, the world has experienced a troubling decline in public health, marked by various factors that have exacerbated existing challenges and introduced new ones. One prominent issue is the rise in non-communicable diseases such as heart disease, diabetes, and cancer, which have become leading causes of death globally.

Sedentary lifestyles, unhealthy diets, and tobacco use have contributed significantly to the prevalence of these diseases, placing immense strain on healthcare systems and diminishing overall well-being. Simultaneously, infectious diseases continue to pose significant threats, with outbreaks such as Ebola, Zika, and more recently, the COVID-19 pandemic, highlighting the vulnerability of global health infrastructure. These outbreaks not only result in loss of life but also disrupt economies and strain healthcare resources, particularly in vulnerable regions with limited access to medical care.

Alongside health challenges, hunger and malnutrition remain persistent issues, despite advancements in agricultural productivity and food distribution. Rapid population growth, coupled with unequal access to resources and economic opportunities, has led to widespread food insecurity, particularly in developing regions.

Climate change further exacerbates this problem, with extreme weather events, droughts, and shifting agricultural patterns threatening food production and availability. Consequently, millions of individuals suffer from hunger, facing not only physical deprivation but also long-term health consequences, including stunted growth, cognitive impairment, and increased susceptibility to disease.

Tragically, these health and hunger issues often intersect, creating vicious cycles of poverty and vulnerability. Malnourished individuals are more susceptible to infectious diseases and less resilient to their effects, while health crises can exacerbate food shortages and deepen poverty. Moreover, marginalized communities, including women, children, and the elderly, bear the brunt of these challenges, facing disproportionate barriers to accessing healthcare, nutritious food, and economic opportunities.

In response to these interconnected challenges, international organizations, governments, and civil society have intensified efforts to address health and hunger issues through various initiatives and interventions. The United Nations' Sustainable Development Goals (SDGs), particularly SDG 2 (Zero Hunger) and SDG 3 (Good Health and Well-being), provide a comprehensive framework for tackling these complex issues holistically.

These goals emphasize the need for inclusive and sustainable approaches that prioritize equity, resilience, and environmental sustainability. By addressing underlying social, economic, and environmental determinants, fostering innovation, and strengthening global cooperation, the international community endeavors to overcome the formidable challenges of deteriorating health, hunger, and epidemics, ensuring a healthier, more prosperous future for all.

Action plan towards health hazards
Conferences dedicated to advancing the Sustainable Development Goals (SDGs), particularly concerning health hazards, serve as critical platforms for global collaboration and action. These gatherings bring together diverse stakeholders, including policymakers, healthcare professionals, researchers, advocates, and representatives from civil society and the private sector. By convening these stakeholders, conferences facilitate knowledge-sharing, exchange of best practices, and the development of innovative solutions to address complex health challenges.

One of the primary focuses of these conferences is combating infectious diseases, which continue to pose significant threats to global health security. Discussions often revolve around strategies for disease prevention, detection, and response, as well as efforts to strengthen health systems and promote international cooperation in disease control. Additionally, conferences address emerging health risks such as antimicrobial resistance and the potential impact of climate change on disease transmission patterns.

Promoting mental health and well-being is another important aspect of these conferences. Recognizing the growing burden of mental health disorders worldwide, discussions center on destigmatizing mental illness, expanding access to mental health services, and integrating mental health into broader health and development agendas. Furthermore, conferences for SDGs emphasize the importance of improving access to healthcare services, particularly in underserved communities. This includes discussions on strategies to address barriers to healthcare access, such as affordability, geographical remoteness, and lack of trained healthcare personnel.

Moreover, these conferences highlight the critical role of addressing social determinants of health, such as poverty, education, and gender inequality, in achieving sustainable health outcomes. By advocating or policies that address these underlying factors, conferences contribute to efforts to create healthier and more equitable societies.

In sum, conferences for Sustainable Development Goals provide a platform for stakeholders to come together, exchange ideas, and catalyze action towards achieving SDG 3: Good Health and Well-being. Through collaboration, innovation, and advocacy, these conferences play a crucial role in advancing global health and saving lives.

Impact
The implementation of the Sustainable Development Goals (SDGs) has undergone significant improvements and changes since their adoption in 2015. One notable improvement lies in the increased recognition of the interconnectedness of the goals and the necessity of adopting a holistic approach to sustainable development. Initially, there was a tendency to view the SDGs in isolation, focusing on individual goals rather than understanding their interlinkages.

However, over time, there has been a shift towards a more integrated approach, acknowledging that progress in one goal area often depends on advancements in others. This recognition has led to more coordinated efforts among governments, international organizations, civil society, and the private sector to address complex challenges comprehensively.

Furthermore, there has been a greater emphasis on data-driven decision-making and monitoring progress towards the SDGs. Improved data collection methods, technological advancements, and increased transparency have enhanced the availability and quality of data, allowing for better tracking of progress and identification of areas needing attention. This shift towards evidence-based policymaking has facilitated the identification of effective strategies and interventions, as well as the allocation of resources where they are most needed.

Moreover, there has been a growing recognition of the importance of partnerships and collaboration in achieving the SDGs. Recognizing that no single actor or sector can address these challenges alone, there has been a concerted effort to forge partnerships across governments, civil society, the private sector, academia, and other stakeholders. These partnerships leverage the diverse expertise, resources, and networks of different actors to drive collective action towards common goals. In terms of changes, there has been a greater focus on localizing the SDGs and tailoring them to the specific contexts and priorities of different countries and communities.

This recognition of the need for context-specific approaches acknowledges that solutions must be tailored to the unique social, economic, and environmental circumstances of each country or region. As a result, there has been an increased emphasis on decentralization, community engagement, and participatory decision-making processes to ensure that the SDGs are relevant and meaningful at the local level.

Additionally, there has been a growing emphasis on the need for transformative change to achieve the SDGs. Recognizing that incremental progress may not be sufficient to address the scale and urgency of the challenges, there has been a call for bold and ambitious action to drive systemic change across economic, social, and environmental dimensions. This includes efforts to address structural inequalities, promote inclusive growth, and transition towards more sustainable consumption and production patterns.

Overall, the improvements and changes in following and implementing the SDGs reflect a growing recognition of the complexity and interconnectedness of sustainable development challenges, as well as a commitment to collective action, evidence-based decision-making, and transformative change to create a more sustainable and equitable future for all.

Conclusion
In conclusion, following the Sustainable Development Goals (SDGs) is essential for fostering better health globally. The SDGs provide a comprehensive framework that addresses the interconnected challenges facing health systems, including infectious diseases, maternal and child health, access to healthcare services, and health disparities. By implementing the SDGs, countries can prioritize investments in health infrastructure, strengthen healthcare systems, and promote preventive measures to improve health outcomes for all.

Additionally, the SDGs emphasize the importance of addressing social determinants of health, such as poverty, education, and gender inequality, which are crucial factors influencing health disparities. Moreover, the SDGs highlight the necessity of global cooperation and partnerships to address transnational health challenges effectively. By aligning efforts with the SDGs, the global community can work towards creating a healthier and more equitable world, where every individual has access to quality healthcare and the opportunity to lead a healthy and fulfilling life.