Tiny Particles in the Air Cause Sudden Heart Attacks

A new study published in the scientific journal "The Lancet" has found that particles dispersed in the air due to pollution can lead to sudden heart attacks. Researchers studied particles that are at least 25 times smaller than the width of a human hair, known as PM2.5 particles (with a diameter of 2.5 micrometers). Their small size means they can be easily inhaled, and they have been linked to a range of health issues, including autoimmune diseases. The study tracked pollution levels in Singapore and linked them to more than 18,000 reported cases of heart attacks. Through statistical analysis, 492 cases were associated with increases in PM2.5 concentrations. Epidemiologist Joel Aik from the Duke-NUS Medical School at the National University of Singapore stated, "We have provided clear evidence of a link between particles and heart attacks, a catastrophic event that often leads to sudden death." Researchers believe that cleaning the city's air could save lives and reduce pressure on hospitals. Clinical scientist Marcus Ong from Duke University School of Medicine added, "This study provides strong evidence of the impact of air quality on health and should stimulate political and grassroots efforts to manage emissions from major sources that can lead to increased PM2.5 and prevent potential harm to public health."