Health
Global Cancer Deaths Projected to Rise 75% by 2050, Lower-Income Countries Most at Risk
The global cancer burden is set to soar in the coming decades, with deaths projected to increase by nearly 75 percent by 2050 despite major medical advances, according to a new analysis published in The Lancet.
The study forecasts that 18.6 million people worldwide will die of cancer in 2050, compared to 10.4 million in 2023. New cancer cases are expected to rise by more than 60 percent in the same period, reaching 30.5 million. Researchers attributed the surge largely to population growth and ageing, which will expand the pool of people most vulnerable to the disease.
Cancer remains closely tied to lifestyle and environmental risks. More than 40 percent of cancer deaths in 2023 were linked to 44 “modifiable” risk factors such as smoking, poor diet, obesity, high blood sugar, and alcohol consumption. Among men, modifiable risks accounted for 46 percent of deaths, led by tobacco use, dietary choices, alcohol, workplace hazards, and air pollution. For women, 36 percent of cancer deaths were tied to modifiable factors, including tobacco, unsafe sex, diet, and high blood sugar.
“There are tremendous opportunities for countries to target these risk factors, potentially preventing cases of cancer and saving lives,” said Dr. Theo Vos, a researcher at the Institute for Health Metrics and Evaluation (IHME) and one of the study’s authors.
The analysis tracked data from 1990 to 2023, covering 47 types of cancer across 204 countries and territories, before projecting trends through 2050. While overall cancer incidence and deaths have climbed sharply since 1990, death rates have declined in many high-income countries due to earlier detection, improved treatments, and prevention strategies such as anti-smoking campaigns.
However, lower-income countries are expected to bear the brunt of the future cancer epidemic. The report warns that they will account for more than half of new cancer cases and two-thirds of cancer deaths by 2050. Limited access to timely diagnosis, effective treatment, and supportive care could turn the situation into what researchers described as an “impending disaster.”
“Cancer is already stretching healthcare systems in lower-income countries, and this rising burden will worsen existing inequalities,” said Meghnath Dhimal of the Nepal Health Research Council, a co-author of the study. He emphasized the need for cost-effective interventions that can be implemented even in resource-constrained settings.
The authors urged governments to prioritize preventive health measures, strengthen screening and diagnostic capacity, and expand access to affordable cancer care. They stressed that curbing risk factors could substantially reduce future cases and deaths, especially in countries where healthcare systems are least prepared for the challenge.
As cancer cases and deaths climb over the next 25 years, the report concludes, addressing modifiable risks and investing in healthcare infrastructure will be critical to averting millions of preventable deaths.
Health
Global Mental Health Cases Near 1.2 Billion as Anxiety and Depression Drive Sharp Worldwide Rise
A major global analysis has found that mental health conditions have surged to an estimated 1.2 billion people worldwide, driven largely by steep increases in anxiety and depression over the past three decades.
The findings, published in The Lancet as part of the Global Burden of Disease Study 2023, show that the number of people living with mental disorders has almost doubled since 1990, marking a 95% rise. Researchers say major depressive disorder and anxiety disorders have seen even sharper growth, increasing by 131% and 158% respectively, making them the most prevalent mental health conditions globally.
The report describes mental illnesses as widespread conditions that create long-term disability and significant human suffering. It also highlights broader consequences for economies and public services, including reduced productivity, lower workforce participation and increasing pressure on health and welfare systems.
Researchers estimate that in 2023 alone, around 620 million females and 552 million males were affected by mental health conditions. While the overall burden is rising across both sexes, the study points to notable differences in the types and prevalence of disorders.
Among women, depression and anxiety were the most commonly reported conditions, alongside higher rates of eating disorders such as anorexia nervosa and bulimia nervosa. The report links this disparity to a mix of biological, social and structural factors, including exposure to domestic violence, sexual abuse, gender inequality and reproductive health-related changes.
In contrast, neurodevelopmental and behavioural disorders, including attention deficit hyperactivity disorder (ADHD), conduct disorder and autism spectrum conditions, were more frequently diagnosed in men.
Teenagers aged 15 to 19 were identified as the group experiencing the highest mental health burden globally, raising concerns about early onset of conditions and insufficient preventive care for young people.
The study identifies several key risk factors associated with mental illness, including childhood sexual violence, bullying and intimate partner violence. These factors are strongly linked to conditions such as depression, schizophrenia, bipolar disorder and anxiety disorders. However, researchers note that such exposures have remained relatively stable over time and account for only a portion of the overall rise.
According to the authors, broader drivers are likely contributing to the increasing prevalence of mental disorders. These include genetic and biological influences, poverty, inequality, and the growing impact of global crises such as armed conflict, pandemics, natural disasters and climate-related stress.
While mental health conditions have long been a leading cause of disability worldwide, the report warns that the situation is worsening. At the same time, health systems have not expanded services at a pace matching demand.
The authors caution that the gap between rising need and limited access to care is becoming more pronounced, leaving millions without adequate treatment or support.
Health
Europe Records Sharp Rise in Sexually Transmitted Infections, ECDC Warns
Health
White House Rejects Report It Blocked Return of Ebola-Infected US Doctor
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