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Climate change extends pollen season, prolonging allergic rhinitis suffering and prompting new coping strategies | Contesto: cronaca

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• موسم التهاب الأنف التحسسي يتمدد، كيف تتحمل أعراضه؟

Contesto

Climate change is lengthening the pollen season, thereby extending the period during which allergic rhinitis—commonly known as hay fever—affects millions of people, according to recent observations. The shift, driven by rising global temperatures and altered weather patterns, means that sufferers now face symptoms for weeks longer than in previous decades, turning what was once a seasonal nuisance into a protracted health challenge. The phenomenon is linked to earlier springs and later autumns, which allow plants to release pollen over a longer timeframe. Warmer temperatures also boost pollen production, with some studies indicating that certain plants now generate up to 20 percent more pollen than in the past. This double effect—longer seasons and higher concentrations—intensifies exposure for individuals sensitive to tree, grass, and weed pollens, leading to more severe and persistent symptoms such as sneezing, nasal congestion, itchy eyes, and fatigue. Medical experts note that the extended season places additional strain on healthcare systems, as more patients seek treatment for symptoms that overlap with other respiratory conditions, including colds and COVID-19. Distinguishing allergic rhinitis from viral infections has become increasingly important, given the similar presentations. Doctors recommend that individuals monitor local pollen forecasts, start antihistamines or nasal corticosteroids before symptoms peak, and consider immunotherapy for long-term relief. Environmental factors compound the issue. Urban areas, with higher concentrations of carbon dioxide and heat-absorbing surfaces, often experience more intense pollen seasons than rural regions. This urban-rural disparity means that city dwellers may face greater exposure, particularly in green spaces where pollen-producing trees are common. Air pollution can also bind to pollen grains, making them more allergenic and capable of penetrating deeper into the lungs. For those already affected, practical measures include keeping windows closed during high-pollen days, using air purifiers with HEPA filters, showering after outdoor activities, and wearing sunglasses or masks to reduce inhalation....

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Categoria: cronaca