Heat Exposure Tied to Acute Immune Changes

Short-term exposure to high outdoor temperatures can weaken the immune system, leading to an increased inflammatory response and reduction in infection-fighting cells, according to a new study. Researchers found that even modest increases in temperature can impact immune system functioning, potentially increasing the risk of cardiovascular disorders and infections. The study, presented at the American Heart Association conference, looked at how heat exposure affects inflammation and the immune response in 624 adults in Louisville. The results showed that higher temperatures were associated with increases in inflammatory markers and decreases in infection-fighting cells, highlighting the impact of heat on overall health.

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