Reacción a "Nearly 1.2 billion people worldwide suffer from mental health disorders"

The article, published in The Lancet—one of the most influential medical journals—is part of the Global Burden of Disease (GBD) project, which compares the impact of diseases worldwide. Its goal is to estimate the true burden of mental disorders and their evolution since 1990, not only in terms of how many people suffer from them, but also how they affect their lives. To do so, it integrates data from multiple sources and uses indicators such as years lived with disability (YLDs) and disability-adjusted life years (DALYs), offering a more comprehensive view of their impact. This approach is particularly relevant in a context where mental health remains underfunded, despite its significant social impact.

The results show that the burden is very high: in 2023, an estimated 1.17 billion cases and 171 million DALYs were recorded. Mental disorders are the leading cause of disability and the fifth leading cause of total disease burden globally. Depression and anxiety account for a large part of the impact, while schizophrenia stands out for its severity. Furthermore, a significant increase is observed in late adolescence and early adulthood, underscoring the importance of prevention and early intervention.

However, these data should be interpreted with caution. The observed increase may be due to multiple factors, such as demographic changes, improved detection, or the impact of COVID-19, and not necessarily to a real increase in cases. Added to this are significant methodological limitations, such as the lack of data in some countries, differences in the quality of sources, and the predominant use of information from high-income contexts. Therefore, although the study is key to guiding public policy, its results must be contextualized before being applied to specific situations.