Mental illness now causes more disability than cancer or heart disease
En el transcurso de una sola generación, el número de personas que viven con un trastorno mental diagnosticado casi se ha duplicado, alcanzando a 1.200 millones de seres humanos en todo el mundo. Un estudio publicado en The Lancet revela que la ansiedad y la depresión —agravadas por la pandemia y sostenidas por la pobreza, la violencia y la desigualdad estructural— han convertido la salud mental en la principal causa de discapacidad global, por encima del cáncer y las enfermedades cardiovasculares. Lo que esta cifra señala no es solo sufrimiento individual, sino una fractura colectiva en la manera en que las sociedades cuidan —o descuidan— a quienes las habitan.
- Los trastornos mentales afectan ya a 1.200 millones de personas y representan más del 17% de todos los años vividos con discapacidad en el mundo, superando al cáncer y a las enfermedades del corazón.
- La depresión creció un 24% desde 2019 y la ansiedad se disparó un 47% tras la pandemia, impulsadas tanto por el trauma colectivo del aislamiento como por causas estructurales más antiguas: pobreza, abuso y violencia.
- Las adolescentes de entre 15 y 19 años y las mujeres en general cargan con el peso desproporcionado de esta crisis: 620 millones de mujeres afectadas frente a 552 millones de hombres, una brecha que refleja desigualdad, discriminación y violencia doméstica.
- Solo el 9% de quienes padecen depresión mayor reciben tratamiento adecuado en el mundo; en muchos países esa cifra cae por debajo del 5%, dejando a cientos de millones sin acceso a ninguna forma de ayuda.
- Los investigadores advierten que los gobiernos deben reordenar sus prioridades con urgencia: sin inversión sostenida en sistemas de salud mental y acción global coordinada, la crisis seguirá profundizándose.
Desde 1990, el número de personas con un trastorno mental diagnosticado casi se ha duplicado. Hoy, 1.200 millones de individuos en todo el mundo cargan con ese peso. El dato proviene de un análisis exhaustivo publicado en The Lancet, elaborado por investigadores del Instituto de Métricas y Evaluación de la Salud de la Universidad de Washington, que examinó patrones de salud mental en más de 200 países.
Lo que hace urgente esta crisis no es solo su magnitud, sino su jerarquía: los trastornos mentales han superado al cáncer y a las enfermedades cardiovasculares como principal causa de discapacidad mundial, representando más del 17% de todos los años vividos con discapacidad. Dos condiciones concentran el aumento: la depresión, cuya prevalencia creció un 24% desde 2019, y la ansiedad, que se disparó un 47% tras el inicio de la pandemia. El autor principal del estudio, Damian Santomauro, señala un doble origen: el estrés sostenido de la disrupción pandémica y causas estructurales más profundas —pobreza, inseguridad, abuso y violencia— que permanecen sin resolver.
La carga no se distribuye de manera uniforme. Los adolescentes de entre 15 y 19 años atraviesan su momento de mayor vulnerabilidad en una ventana crítica del desarrollo. Las mujeres, en todos los grupos de edad, cargan con una parte desproporcionada: en 2023, aproximadamente 620 millones de mujeres vivían con un trastorno mental, frente a 552 millones de hombres. Esa brecha refleja realidades documentadas: violencia doméstica, desigualdad estructural y discriminación.
Geográficamente, la crisis alcanza a todas las regiones, aunque las tasas más altas se registran en zonas de altos ingresos como Australasia y Europa Occidental. Sin embargo, la estadística más reveladora puede ser esta: solo el 9% de quienes padecen depresión mayor reciben tratamiento adecuado en el mundo. Los investigadores concluyen que los gobiernos deben reordenar sus prioridades con urgencia, porque los 1.200 millones de personas afectadas no son una cifra a gestionar, sino una señal de que algo fundamental en cómo organizamos la vida en común se ha roto.
The scale of mental illness has become staggering. In the span of a single generation—since 1990—the number of people living with a diagnosed mental disorder has nearly doubled. Today, 1.2 billion individuals across the globe carry that weight. The finding comes from a sweeping analysis published in The Lancet, a study that examined mental health patterns across more than 200 countries and territories, conducted by researchers at the Institute for Health Metrics and Evaluation at the University of Washington in Seattle.
What makes this crisis particularly urgent is not just its size but its ranking. Mental disorders have now surpassed cancer and cardiovascular disease as the leading cause of disability worldwide. They account for more than 17 percent of all years lived with disability globally—a measure that captures not deaths, but the erosion of quality life itself. Two conditions drive most of this increase: anxiety disorders and major depression. Since 2019 alone, depression prevalence has climbed 24 percent. Anxiety has surged even more dramatically, rising 47 percent in the years following the pandemic's onset.
Damian Santomauro, the study's lead author, points to a dual origin for these numbers. The immediate spike reflects the persistent stress of pandemic disruption—the isolation, the economic uncertainty, the collective trauma. But beneath that lies something older and more structural: poverty, insecurity, abuse, and violence. These are the conditions that have always corroded mental health, and they remain largely unchanged.
The burden does not fall evenly. Adolescents aged 15 to 19 face their moment of highest vulnerability during a critical developmental window. Women across all age groups carry a disproportionate load. In 2023, approximately 620 million women lived with a mental disorder, compared to 552 million men. Alize Ferrari, a coauthor of the research, emphasizes that this peak in adolescence marks a period when intervention matters most. The gender gap reflects documented realities: domestic violence, structural inequality, discrimination. These are not abstract forces—they shape the daily lives of hundreds of millions of people.
Geographically, the crisis touches every region, though high-income areas like Australasia and Western Europe report the highest prevalence rates. The Netherlands and Portugal show particularly elevated numbers. Yet the most damning statistic may be this: only 9 percent of people with major depression receive adequate treatment anywhere in the world. In many countries, that figure drops below 5 percent. Millions of people know they are suffering. Few have access to help.
The researchers conclude that governments must fundamentally reorder their priorities. Mental health systems require sustained investment. The crisis demands coordinated global action, not fragmented national responses. The 1.2 billion people living with these disorders are not a statistic to be managed—they are a signal that something in how we live, how we organize society, how we treat one another, has broken. The question now is whether the world will respond with the urgency this moment demands.
Citas Notables
These upward trends may reflect both the lasting effects of pandemic-related stress and long-term structural factors such as poverty, insecurity, abuse, and violence— Dr. Damian Santomauro, lead author of the study
The burden of mental disorders peaks between ages 15 and 19, a critical period of development— Dr. Alize Ferrari, coauthor of the research
La Conversación del Hearth Otra perspectiva de la historia
Why has mental illness nearly doubled in just thirty years? That's not a gradual drift—that's a sharp turn.
Some of it is real change in the world: the pandemic accelerated things, poverty and violence persist, inequality deepens. But some of it is also visibility. We're diagnosing conditions we used to ignore or hide. Still, the researchers point to concrete increases in anxiety and depression since 2019 alone—47 percent for anxiety. That's not just better counting.
The study says women and teenagers are hit hardest. Why those groups specifically?
Adolescence is a biological and psychological inflection point—the brain is still forming, identity is fragile, peer pressure is intense. For women, it's structural: they face domestic violence, economic inequality, discrimination that men don't experience at the same rate. These aren't individual failings. They're built into how society works.
But the truly shocking number to me is the treatment gap. Nine percent of people with depression get adequate care. That's almost everyone suffering alone.
Yes. And in many countries it's worse than that—below 5 percent. So you have 1.2 billion people, and fewer than 110 million receiving real help. The infrastructure doesn't exist. The money isn't there. The stigma is still enormous in many places.
If mental disorders now cause more disability than cancer, why isn't this treated like a public health emergency?
That's the question the researchers are asking. They're saying governments need to act like it is one—sustained investment, coordinated response. Right now it's treated as secondary, something to address after physical health. The data suggests that's backwards.