Alcohol is deeply embedded in many cultures, economies, and social rituals - yet it remains a major contributor to global morbidity and mortality. Harmful alcohol use is associated with liver disease, cancers, cardiovascular conditions, injuries, violence, mental health disorders, and social disruption.

This episode examines:

• Global patterns of alcohol …

Illicit psychoactive drug use is a significant contributor to global morbidity and mortality. Although its overall burden is smaller than that attributable to tobacco or alcohol, illicit drug use generates substantial health, social, and economic consequences - including overdose deaths, infectious disease transmission, mental health disorders, and soci…

Tobacco use remains the single largest preventable cause of premature mortality worldwide. It is a driver of cardiovascular disease, cancers, chronic respiratory disease, and a wide range of other conditions. Despite decades of evidence, tobacco continues to exert a profound influence on global health, particularly in low- and middle-income countries wh…

Bioterrorism represents the deliberate release of biological agents to cause illness, fear, and societal disruption. Although rare compared to naturally occurring outbreaks, the consequences of intentional biological release can be profound, requiring rapid detection, coordinated response, and effective risk communication.

This episode examines:

• Histori…

Emerging infections represent one of the most dynamic and unpredictable areas of public health. Novel pathogens, zoonotic spillovers, antimicrobial resistance, and ecological disruption continuously reshape global disease landscapes.

This episode examines:

• Drivers of emerging and re-emerging infections• Zoonotic spillover and wildlife–human interfaces• …

Chronic hepatitis - primarily caused by hepatitis B and hepatitis C viruses - represents a major global health burden, leading to cirrhosis, liver failure, and hepatocellular carcinoma. Despite effective vaccines and curative therapies, millions remain undiagnosed or untreated.

This episode explores:

• Global epidemiology of hepatitis B and C• Modes of tr…

Malaria remains one of the most significant parasitic diseases worldwide, with a disproportionate burden in sub-Saharan Africa. Transmitted by the Anopheles mosquito, malaria reflects the complex interplay between environment, vector ecology, socioeconomic conditions, and health system capacity.

This episode explores:

• Global epidemiology and regional di…

Tuberculosis (TB) remains one of the leading infectious causes of death worldwide, despite being preventable and treatable. Caused by Mycobacterium tuberculosis, it spreads primarily through airborne transmission and disproportionately affects low- and middle-income countries.

This episode examines:

• Global epidemiology and high-burden regions• Latent ve…

HIV/AIDS has shaped modern public health more profoundly than almost any other infectious disease. Since its emergence in the late twentieth century, it has caused millions of deaths, reshaped global health governance, and driven innovation in prevention, treatment, and human rights advocacy.

This episode examines:

• Global epidemiology and regional varia…

Sexually transmitted infections (STIs) remain a significant global public health challenge, with millions of new infections occurring each year. While many STIs are preventable and treatable, persistent stigma, inequitable access to services, and social determinants continue to drive transmission.

This episode explores:

• Global epidemiology of major STIs…