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Long-term inhalation of toxic air appears to dull the protective power of regular workouts, according to a massive global study spanning more than a decade and over a million adults. While exercise still helps people live longer, its benefits shrink dramatically in regions with heavy fine particle pollution—especially above key PM2.5 thresholds common in many parts of the world. The researchers emphasize that outdoor activity shouldn’t stop, but better air quality could unlock far greater health gains. Source link India Cheetah Veera's 10-Month-Old… Cheetah Cub Dies In Kuno National… Dabur receives 'no adverse… Myanmar and Tibet hit by series…
Más de tres cuartas partes de los adultos en Estados Unidos no se vacunaron contra covid la temporada pasada y expertos en salud advierten que esa cifra podría aumentar este año debido a las nuevas recomendaciones del gobierno federal. Al principio, la vacuna contra covid fue popular. En los primeros meses de 2022, alrededor del 75% de los estadounidenses había recibido al menos una dosis de las primeras versiones de la vacuna, según datos de los Centros para el Control y Prevención de Enfermedades (CDC). Durante la temporada 2024-2025, en cambio, solo cerca del 23% de los adultos se…
ROCHESTER, Minn. — Clinicians typically classify meningiomas — the most common type of brain tumor — into three grades, ranging from slow-growing to aggressive. Gelareh Zadeh, M.D., Ph.D. But a new multi-institutional study suggests that appearances may be deceiving. If a tumor shows activity in a gene called telomerase reverse transcriptase (TERT), it tends to recur more quickly, even if it looks low-grade under the microscope. The findings, published in Lancet Oncology, could significantly change how doctors diagnose and treat meningiomas. “High TERT expression is strongly linked to faster disease progression,” says Gelareh Zadeh, M.D., Ph.D., a neurosurgeon at…