Mental illness has become a privilege problem
Más de mil millones de personas en el mundo cargan hoy con un trastorno mental, una cifra que se ha duplicado desde 1990 y que convierte al sufrimiento psíquico en la principal causa de discapacidad global. Un estudio publicado en The Lancet revela que la ansiedad y la depresión se dispararon tras la pandemia, afectando de manera desproporcionada a mujeres y adolescentes. Sin embargo, apenas el 9% de quienes padecen estas condiciones reciben atención mínimamente adecuada, lo que transforma la salud mental en un privilegio reservado a quienes viven en países con sistemas sanitarios robustos. La humanidad ha nombrado la crisis; lo que aún no ha decidido es si está dispuesta a enfrentarla.
- 1.170 millones de personas viven con un trastorno mental, más que la población de cualquier país del mundo excepto China e India.
- La depresión creció un 24% y la ansiedad un 47% desde 2019, una aceleración que los investigadores vinculan directamente al impacto prolongado de la pandemia.
- El 91% de quienes sufren depresión o ansiedad no recibe atención adecuada, y en 90 países de bajos ingresos esa cobertura cae por debajo del 5%.
- Las mujeres y los adolescentes de 15 a 19 años soportan la mayor carga: 620 millones de mujeres afectadas y una adolescencia identificada como la ventana crítica donde la enfermedad puede torcer el rumbo de una vida entera.
- Solo tres países —Australia, Canadá y los Países Bajos— superan el 30% de cobertura de tratamiento, mientras la mayoría del mundo carece de datos fiables y de recursos para actuar.
La salud mental se ha convertido en la principal causa de discapacidad en el mundo. Un estudio internacional publicado en The Lancet, elaborado por investigadores del Instituto de Métricas y Evaluación de la Salud de la Universidad de Washington, analizó 12 trastornos mentales en 204 países entre 1990 y 2023. El resultado es contundente: 1.170 millones de personas viven hoy con un trastorno mental, el doble que hace tres décadas, y estas condiciones representan más del 17% de toda la discapacidad global, superando al conjunto de enfermedades cardiovasculares, cáncer y trastornos musculoesqueléticos.
La pandemia actuó como acelerador. Desde 2019, la depresión mayor creció un 24% y los trastornos de ansiedad un 47%. Pero el dato más perturbador no es la magnitud del problema, sino el abismo entre quienes lo padecen y quienes reciben ayuda: apenas el 9% de los afectados por depresión o ansiedad accede a una atención mínimamente adecuada. En los países de bajos ingresos, esa cifra se desploma por debajo del 5%.
Dos grupos concentran el peso más severo. Las mujeres —620 millones afectadas frente a 552 millones de hombres— acumulan una carga que los investigadores atribuyen a la violencia doméstica, el abuso sexual, las responsabilidades de cuidado y la discriminación de género. Los adolescentes de 15 a 19 años, por su parte, atraviesan la ventana de mayor riesgo: es en esa etapa cuando la ansiedad y la depresión emergen con más fuerza, con consecuencias que pueden condicionar la educación, el empleo y las relaciones para toda la vida.
El estudio advierte también sus propios límites: no hay datos disponibles para 75 países, la mayoría de ingresos bajos o medios, y los trastornos por consumo de sustancias quedaron fuera del análisis. La escala real de la crisis podría ser aún mayor. Lo que sí queda claro es que la salud mental ha dejado de ser un problema clínico para convertirse en una desigualdad estructural: algo que se trata si se tiene la suerte de nacer en el lugar correcto, y algo que se soporta en silencio si no.
Mental illness has become the world's leading cause of disability. A sweeping international study published in The Lancet found that 1.17 billion people now live with a mental disorder—a staggering figure that has doubled since 1990. These conditions account for more than 17 percent of all disability globally, eclipsing cardiovascular disease, cancer, and musculoskeletal disorders combined.
Researchers from the Institute for Health Metrics and Evaluation at the University of Washington examined the 12 most common mental disorders across 204 countries, tracking data from 1990 through 2023 across 25 age groups in both men and women. What emerged was a portrait of a crisis that has accelerated sharply in recent years, driven largely by surging rates of anxiety and depression. Since 2019 alone, major depressive disorder has increased 24 percent, while anxiety disorders have climbed more than 47 percent—a spike researchers attribute directly to the pandemic's aftermath.
Yet the treatment gap remains cavernous. Only 9 percent of people suffering from depression or anxiety receive minimally adequate care. In 90 low-income countries, that figure drops below 5 percent. Among the 204 nations studied, just a handful—Australia, Canada, and the Netherlands among them—have managed to provide treatment coverage to more than 30 percent of those affected. For most of the world, mental illness has become a condition you endure largely alone.
The burden falls with particular weight on two groups: adolescents and women. Teenagers aged 15 to 19 experience the peak onset of mental illness, a critical developmental window when anxiety and depression emerge as the dominant disorders. Alize Ferrari, a researcher at the University of Queensland and one of the study's authors, noted that this age represents "a critical period that can shape the trajectory of education, employment, and relationships." The teenage years, in other words, are when mental illness can derail an entire life.
Women carry a disproportionate load. In 2023, 620 million women across all ages suffered from a mental disorder, compared to 552 million men. Researchers attribute this gap to domestic violence, sexual abuse, the unequal burden of caregiving responsibilities, and gender-based discrimination—structural forces that accumulate in the female body as psychological distress. The pattern holds across age groups, though early childhood sees more boys affected by autism spectrum disorder, ADHD, conduct disorders, and developmental intellectual disabilities.
The researchers are clear about what must happen next: sustained investment in mental health systems to expand access and improve coverage. Yet their own study contains a sobering caveat. Data was unavailable for 75 countries, mostly low- and middle-income nations, forcing researchers to extrapolate using statistical models. Most diagnostic surveys predate 2019. Substance use disorders were excluded from the analysis entirely. The true scale of the crisis may be even larger than these numbers suggest.
What the study reveals is not simply a health problem but a structural inequality. Mental illness has become a privilege problem—something you can afford to treat if you live in a wealthy country with robust health infrastructure, and something you endure in silence if you don't. With 1.17 billion people affected and the vast majority receiving no adequate care, the question is no longer whether mental health is a crisis. It is whether the world's health systems will finally treat it as one.
Citas Notables
The burden of mental disorders reaches its peak between ages 15 and 19, a critical developmental period that can shape the trajectory of education, employment, and relationships— Alize Ferrari, University of Queensland researcher
Addressing this growing challenge requires sustained investment in mental health systems to expand access and improve coverage— Study researchers
La Conversación del Hearth Otra perspectiva de la historia
Why has mental illness doubled since 1990? What changed?
The study doesn't isolate a single cause, but the pandemic acceleration is telling. Anxiety and depression jumped 24 to 47 percent in just four years. That's not a gradual drift—that's a shock to the system. Before that, you had decades of urbanization, economic precarity, social media, the usual suspects. But the pandemic seems to have been a breaking point.
The study says only 9 percent of people with depression or anxiety get adequate treatment. That's staggering. Why is the gap so large?
It's partly infrastructure—many countries simply don't have enough mental health workers or facilities. But it's also stigma, cost, and the way mental illness is deprioritized. A heart attack gets you to an emergency room. Depression gets you a waiting list, if you're lucky.
Why are women and teenagers hit so much harder?
For teenagers, it's developmental timing. The brain is still forming. Stress hits differently. For women, the study points to violence, abuse, caregiving burdens, discrimination. These aren't biological inevitabilities—they're social conditions that get internalized as illness.
Only three countries have treatment coverage above 30 percent. That seems impossibly low.
It is. It means that even in wealthy nations, most people with mental illness aren't getting help. In poor countries, it's worse. You're looking at a world where mental health care is essentially a luxury good.
What happens to the 1.17 billion people who aren't getting treated?
They keep living. They work, they parent, they struggle. Some recover on their own. Some get worse. Some don't survive it. The study doesn't track outcomes—it just counts the burden. But that burden is real. It shapes whether someone finishes school, keeps a job, stays in a relationship.