A study by the Barcelona Institute for Global Health (ISGlobal), a center supported by the "la Caixa" Foundation, assessed the levels of noise generated by road traffic and examined its impact on health in 749 European cities. The findings, published in Environment International, show that nearly 60 million adults are subjected to unhealthy levels of vehicle-generated noise. Compliance with the World Health Organisation (WHO) noise-level guidelines could prevent 3,600 deaths annually from ischemic heart disease alone.