Climate change linked to increased risk of cardiovascular disease: JAMA Study
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In a new study, published in JAMA Cardiology, researchers at Beth Israel Deaconess Medical Center (BIDMC) conducted a systematic review to determine whether there is a link between climate change-related environmental stressors and cardiovascular disease.
Cardiovascular disease (CVD) is the leading cause of death worldwide, accounting for approximately one in every three deaths, with more than 20 million deaths, according to a 2024 World Heart Federation report.
Climate change can impact cardiovascular health through various mechanisms. Firstly, exposure to environmental stressors can lead to physiological changes, such as an increased heart rate and plasma viscosity during extreme heat, or local and systemic inflammation following the inhalation of airborne particulate matter. Secondly, coping with extreme weather events can heighten stress, anxiety, and depression, which in turn may elevate cardiovascular risk. Together, these pathways pose significant threats to the cardiovascular health of the population.
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