17 threats are putting global health at risk, and diseases are only part of the problem

• Major health risks and international expert warnings reveal a dangerous build-up of global factors threatening economic stability over the next 75 years, far surpassing traditional health agency estimates.

• Health authorities and global organizations demand immediate structural reforms in preventive funding and infrastructure to curb massive life losses before the turn of the century.

• Researchers from the University of Washington and The Lancet Commission urge world leaders to prioritize international cooperation and strategic investment to prevent irreversible damage.

The Lancet Commission on 21st Century Threats to Global Health presented a landmark report at the World Health Summit in Berlin, analyzing critical factors and threats to global health that challenge human survival through 2100. Indeed, this scientific evaluation brings together 35 specialists in economics, governance, security, and medicine from the University of Washington, who warn about tens of billions of healthy life years potentially lost. Likewise, the analysis shows that current challenges extend far beyond hospital walls and demand immediate geopolitical decisions, emphasizing that choices made by current leaders will determine future well-being.

On the other hand, experts quantified the potential impact of these dangers using Disability-Adjusted Life Years (DALYs) across 204 countries and territories, revealing a dangerous overlap between climate crises, recessions and armed conflicts. Meanwhile, the research highlights that humanity still retains the capacity to alter this trajectory through preventive public policy and targeted funding, preventing the most vulnerable communities from suffering the heaviest cumulative impact. Consequently, the organization calls for independent, continuous monitoring of international risks, ensuring global institutions react in time to catastrophic scenarios.

Transforming the public health agenda toward emerging threats to global health

The recent medical publication redefines the public health landscape by incorporating technological and geopolitical events alongside traditional chronic conditions, demonstrating that human well-being directly depends on economic balance. Similarly, the accumulation of factors like climate change and global recessions amplifies existing vulnerabilities, causing drastic declines in living standards for marginalized populations.

Furthermore, the research highlights that standard mortality indicators fail to measure the true impact of future emergencies, prompting scientists to rely on the standardized metric of Disability-Adjusted Life Years (DALY). According to methodology maintained by the Institute for Health Metrics and Evaluation, this technical metric quantifies exactly 1 year of healthy life lost to premature death or years lived with illness or disability, capturing the full spectrum of fatal and non-fatal damages over a projected 75-year period.

1. Income inequality as major health risks

This socioeconomic disparity threatens to rob humanity of 13.8B healthy life years due to a chronic lack of basic health resources, with vulnerable populations in Sub-Saharan Africa, South Asia, and developing Latin American nations suffering the most severe consequences as tracked by the World Bank Group.

2. Low educational attainment as threats to global health

Educational backsliding drives a projected loss of 16.1B healthy life years by limiting disease prevention and healthy habit formation, recording its most critical and disproportionate impact across Sub-Saharan Africa according to data compiled by UNESCO.

3. Obesity as major health risks

This metabolic condition leads avoidable losses with a total of 23.1B healthy life years by the end of the century, hitting hardest in the United States, Mexico, and Pacific island nations like Nauru, Palau, and the Cook Islands based on health assessments from the World Health Organization.

4. Natural pandemics as threats to global health

Emerging epidemic outbreaks continue to threaten the epidemiological stability of over 200 countries through the rapid spread of zoonotic pathogens, striking hardest at developing nations with fragile hospital networks across Central Africa, Southeast Asia, and Latin America.

5. Mental health issues as major health risks

Anxiety and depression disorders impair the productive capacity of millions worldwide, showing the highest disability burden rates in high-income countries like the United States, Australia, and Western European nations.

6. Malicious use of artificial intelligence as threats to global health

The manipulation of autonomous systems holds direct potential for human extinction by facilitating the design of novel biological pathogens, representing a transnational risk that threatens technological powers like the United States, China, and the European Union due to concentrated critical infrastructure.

7. Nuclear war and potential famine as major health risks

Any atomic detonation will instantly destroy lives and trigger a catastrophic nuclear winter that devastates global agriculture, generating deadly famines concentrated primarily in Northern Hemisphere nations according to security research by the Stockholm International Peace Research Institute.

8. Air pollution as threats to global health

Toxic airborne particles destroy lung capacity across entire communities, making India, China, Bangladesh, and Pakistan the most severely affected countries worldwide in terms of premature deaths and lost healthy years as monitored by the United Nations Environment Programme.

9. Antimicrobial and antibiotic resistance as major health risks

The overuse of medications breeds superbugs immune to existing treatments, impacting with particular severity nations with unregulated antibiotic access in South Asia and Sub-Saharan Africa.

10. Child malnutrition as threats to global health

The lack of essential nutrients during early life stages alters physical and cognitive development in millions of children, recording the highest figures of extreme vulnerability in Yemen, Somalia, Chad, and the Democratic Republic of the Congo according to humanitarian trackers at UNICEF.

11. Climate change as major health risks

Rising global temperatures threaten to cause the loss of 1.89B healthy life years, primarily devastating Small Island Developing States (SIDS) in the Pacific and Caribbean alongside arid regions in North Africa and the Middle East as documented by the Intergovernmental Panel on Climate Change.

12. Cuts to international health and development aid as threats to global health

Funding reductions by donor nations halt key vaccination programs, where nearly 70% of the negative impact falls directly on Sub-Saharan African countries.

13. Conventional wars as major health risks

Armed conflicts devastate medical infrastructure and destroy drinking water networks, concentrating today’s worst health and humanitarian crises in territories like Ukraine, Sudan, Syria, and Gaza according to ongoing field documentation from the International Committee of the Red Cross.

14. High alcohol consumption as threats to global health

Recurrent substance abuse promotes liver cirrhosis and tumor development, registering the highest per capita consumption levels and related harm in Eastern Europe, Russia, and Central European countries.

15. High blood pressure as major health risks

This constant cardiovascular risk factor operates silently among billions of people, presenting the highest disease burdens in Eastern European countries, Central Asia, and middle-income nations in Latin America as studied by the American Heart Association.

16. Smoking as threats to global health

Tobacco addiction remains a leading cause of lung cancer and chronic respiratory illness, primarily affecting nations with high smoking rates like China, Indonesia, Greece, and several Eastern European countries.

17. Aging and disease risk as major health risks

Rapidly increasing life expectancy drives a surge in neurodegenerative conditions, overburdening care systems in demographically advanced countries like Japan, Italy, Germany, and South Korea as highlighted by demographic research from the United Nations Department of Economic and Social Affairs.

Evaluated risks excluded from the main ranking

The Lancet Commission analyzed hundreds of factors before selecting the final 17 catastrophic factors, excluding several relevant risks based on strict criteria regarding existing public attention. Additionally, researchers framed these exclusions against major health risks that require urgent policy updates to maximize funding efficiency.

• Ischemic heart disease: It already receives substantial attention and consolidated budgets within global public health policies.

• Various cancers: They possess widely established preventive programs and diagnostic protocols across international healthcare systems.

• Asteroid impacts: They fail to meet mathematical probability thresholds and offer no actionable public health intervention window within the projected timeline as confirmed by planetary monitoring data from NASA.

• Supervolcanoes: They lack direct health prevention mechanisms or immediate government intervention strategies.

Artificial intelligence technological risks and major health risks

Quantifying the emerging danger of artificial intelligence presented unprecedented methodological challenges for researchers, given the complete absence of historical global events involving malicious AI. For this reason, the scientific team turned to the “superforecaster” methodology, consulting high-performing experts whose historical predictions undergo systematic evaluation and validation.

Additionally, the research identified three primary pathways through which the deliberate and malicious use of AI could trigger catastrophic public health consequences worldwide, moving far beyond standard discussions about automation:

• Creation of pathogens and bioweapons as major health risks: Advanced AI models can synthesize new lethal biological agents or facilitate genetic engineering of immune pathogens.

• Cascading failures in critical infrastructure: Autonomous agents expose vulnerabilities in healthcare networks, essential energy grids, or national security systems.

• Loss of control over autonomous agents: Systems can experience irreversible divergence from initial goals, triggering destructive operational decisions.

Geopolitical scenarios of nuclear conflict and climate vulnerability as threats to global health

The analysis regarding nuclear conflict extends beyond measuring direct victims of an atomic detonation, evaluating the subsequent collapse of global supply chains and massive agricultural devastation. Likewise, the authors emphasize that the primary risk stems not from isolated accidents or terrorist attacks, but from escalating tensions between superpowers, recommending an immediate reinforcement of non-proliferation agreements to manage these threats to global health and mitigate major health risks on a global scale.

Meanwhile, climate crisis modeling demonstrates that limiting global warming to 1.8 °C would prevent the loss of 1.89B healthy life years, compared to the catastrophic baseline trajectory of 4.4 °C projected without government intervention. Additionally, scientists acknowledge complex climate variables that remain difficult to fully quantify, such as prolonged droughts, water insecurity, massive crop losses, and forced population displacements.