Scientific American • 12/9/2025 – 12/14/2025

More than 1,900 people, mostly children, have been sickened by measles in the U.S. in 2025. The outbreaks are moving the country toward losing its measles-free status by early next year, indicating a significant public health concern. The increase in measles cases highlights the challenges faced in maintaining vaccination coverage and public health safety. In a separate development, the U.S. Food and Drug Administration (FDA) has approved a device designed to treat depression through brain stimulation at home. This device operates by sending electric currents to a specific part of the brain that regulates mood. The approval signifies a notable advancement in mental health treatment, allowing patients to manage their condition outside of traditional clinical settings. This innovation may increase accessibility to treatment for individuals suffering from depression and could potentially lead to improved outcomes for those who prefer to manage their treatment independently or who may not have access to conventional therapies. Additionally, the U.S. is facing challenges in its scientific research capabilities in Antarctica. The withdrawal of its last research ship is expected to hinder ongoing and future research efforts in the region, where the U.S. has historically conducted extensive studies. Scientists have expressed concerns that this decision may limit the U.S. ability to monitor climate change and its effects on polar regions, which are crucial indicators of global environmental shifts. The absence of a dedicated research vessel could also allow other nations to expand their influence in Antarctica, raising questions about the future of U.S. scientific leadership in polar research.
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