Universe Expansion May Be Slowing

A groundbreaking new study has challenged one of the core assumptions of modern cosmology — that the universe’s expansion is accelerating. Scientists analyzing fresh cosmic data suggest that the universe may actually be slowing down. This contradicts the widely accepted theory tied to “dark energy,” which was thought to drive faster expansion. If confirmed, this discovery could reshape our understanding of the universe’s evolution and even the fate of cosmic structures.

Breakthrough in Anxiety and Emotional Disorder Research

Researchers at the Universidad Miguel Hernández de Elche have identified a specific group of neurons in the amygdala linked to anxiety and social-deficit behaviors in mice. By rebalancing the electrical activity of these neurons, they were able to reverse anxiety-like symptoms, opening a new path for developing targeted therapies. This finding deepens our understanding of how brain circuits contribute to emotional regulation and mental health.

Melatonin Use Linked to Heart Risks

A large-scale observational study has raised concerns about the long-term safety of melatonin, a popular sleep supplement. The research found that chronic use of melatonin was associated with increased risks of heart failure hospitalizations and higher mortality rates. Although the results don’t establish direct causation, they highlight the need for caution in over-the-counter melatonin use and call for more clinical trials to determine safe dosages and durations.

Freshwater Contamination Raises Environmental Alarm

A citizen-science study in the UK has uncovered alarming levels of chemical contamination in rivers and lakes. Samples revealed traces of insecticides, antibiotics, and even illicit drugs, suggesting widespread pollution from household and industrial sources. These contaminants threaten aquatic ecosystems, potentially harming fish populations and disrupting biodiversity. The findings emphasize the urgent need for stronger water-quality monitoring and environmental protection measures.

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