New Study Links Chemicals in Plastics to Heart Disease

A recent study published in Lancet eBioMedicine has found a strong association between exposure to chemicals commonly found in plastics and heart disease-related deaths worldwide. The chemicals in question, phthalates, are used in a wide range of everyday products—from detergents and plastic pipes to cosmetics and solvents—and are now raising urgent public health concerns.

Phthalates gradually degrade into microscopic particles that can enter the human body through ingestion, inhalation, or skin contact. These microplastics have already been detected in drinking water, food, and even inside critical organs such as the lungs, liver, spleen, and kidneys. A 2022 study published in Environment International also found microplastics in human blood, clinging to red blood cells and potentially impairing their ability to carry oxygen.

While phthalates have previously been linked to obesity, diabetes, cancer, and fertility issues, this new study draws a direct connection between one phthalate in particular—di-2-ethylhexyl phthalate (DEHP)—and cardiovascular disease. DEHP is believed to trigger arterial inflammation and an exaggerated immune response, significantly elevating the risk of heart attacks and strokes.