Plastic Chemicals Linked to Millions of Preterm Births Worldwide
A startling new analysis has revealed a significant link between common plastic additives and a global rise in premature births. According to research led by NYU Langone Health, exposure to chemicals used to make plastics flexible may have contributed to approximately 1.97 million preterm births in 2018 alone. This figure represents more than 8 percent of the world’s total preterm births for that year.
Beyond the number of early births, researchers estimate that these toxins were linked to the deaths of 74,000 newborns. The findings, published on March 31, 2026, in the journal eClinicalMedicine, highlight a critical public health challenge regarding the synthetic chemicals that permeate modern daily life.
Understanding Phthalates: The Hidden Toxins in Your Home
The chemicals at the center of this study are known as phthalates. Specifically, the research focuses on di-2-ethylhexylphthalate (DEHP) and its relative, diisononyl phthalate (DiNP). These synthetic chemicals are primarily used to increase the flexibility and durability of plastics.
Phthalates aren’t just in plastic bottles; they are found in a wide array of household products, including:
- Cosmetics and personal care products
- Detergents
- Bug repellents
- Various other household items
These substances can break down into microscopic particles, allowing them to enter the human body through the air we breathe, the dust in our homes, and the food we eat.
How Plastic Additives Affect Pregnancy
The primary danger of phthalates lies in their ability to interfere with the body’s endocrine system, which manages hormone production. Even minor hormonal disruptions can lead to significant biological and developmental effects.
A baby is considered premature when it is born before the 37th week of pregnancy. In the United States, the 2025 March of Dimes Report Card indicates that about 1 in 10 infants was born premature in 2024. When these births are triggered by chemical exposure, the risks to the infant are substantial.
Long-Term Health Risks for Preterm Infants
Preterm birth is a leading cause of infant death and a major risk factor for lasting developmental issues. According to the US Centers for Disease Control and Prevention, surviving premature infants may face several lifelong challenges, including:
- Breathing and feeding difficulties
- Cerebral palsy
- Developmental delays
- Vision and hearing impairment
Beyond Prematurity: Other Health Concerns
While this specific study focuses on birth outcomes, the impact of DEHP extends further. Sara Hyman, MS, an associate research scientist at NYU Grossman School of Medicine and lead author of the study, notes that previous research has linked DEHP exposure to other severe health conditions, such as:
- Cancer
- Heart disease
- Infertility
Dr. Leonardo Trasande, senior author of the study and professor of pediatrics at NYU Langone’s Grossman School of Medicine, describes phthalates as a “dangerous class of chemicals.” He emphasizes that as efforts increase to raise birth rates in the U.S., the priority must as well be ensuring that those babies are born healthy.
Key Takeaways from the Study
- Global Impact: DEHP exposure contributed to roughly 1.97 million preterm births and 74,000 newborn deaths in 2018.
- Common Sources: Phthalates are found in detergents, cosmetics, and bug repellents.
- Biological Mechanism: These chemicals act as endocrine disruptors, interfering with hormone production.
- Systemic Failure: The study suggests that regulating toxins one by one is insufficient, as replacement chemicals often pose similar risks.
Frequently Asked Questions
What are the most dangerous phthalates mentioned in the study?
The study specifically highlights di-2-ethylhexylphthalate (DEHP) and diisononyl phthalate (DiNP) as chemicals linked to premature births and infant deaths.
How do these chemicals enter the body?
Phthalates break down into microscopic particles that are inhaled through the air and dust or ingested through contaminated food.
Can these effects be prevented?
Researchers suggest that reducing exposure to these chemicals, particularly in vulnerable regions, can help prevent early births and the subsequent health complications.
Looking Forward
The findings from NYU Langone Health serve as a wake-up call for stricter regulation of plastic additives. Because replacement chemicals often mirror the risks of the toxins they replace, a more comprehensive approach to chemical safety is necessary to protect maternal and infant health worldwide.