Human Journey

BPA Back Again

Bisphenol-A, commonly abbreviated BPA, has been in the news again recently, and, again, not for good reasons.  A new study out of the University of Exeter has linked high levels of BPA in adults with an increased risk of heart disease.  The Food and Drug Administration has asked for additional studies on the chemical and has begun to find ways to reduce the chemical in the food supply.

BPA is found in many household items, like plastic containers (with a seven in the recycling symbol), baby bottles, and food cans.  The chemical can mimic estrogen, causing reproductive mutations in the womb, and the FDA’s concerns cite possible brain, behavior, and prostate problems in fetuses, infants, and young children. BPA may be just one of many endocrine disruptors that accumulate in the environment and have been linked to intersex fish in several U.S. rivers.

To cut down on your exposure, don’t microwave plastic containers with a 7, and avoid food cans lined with BPA plastics.  

To learn more about BPA, check out the following links from National Geographic:

More about BPA can also be found at the FDA Web site

James Robertson


Forty years in U.S., UK, and South African media gives David Braun global perspective and experience across multiple storytelling platforms. His coverage of science, nature, politics, and technology has been published/broadcast by the BBC, CNN, NPR, AP, UPI, National Geographic, TechWeb, De Telegraaf, Travel World, and Argus South African Newspapers. He has published two books and won several journalism awards. He has 120,000 followers on social media. David Braun edits the National Geographic Society blog, hosting a global discussion on issues resonating with the Society's mission and initiatives. He also directs the Society side of the Fulbright-National Geographic Digital Storytelling Fellowship, awarded to Americans seeking the opportunity to spend nine months abroad, engaging local communities and sharing stories from the field with a global audience. Follow David on Facebook  Twitter  LinkedIn

About the Blog

Researchers, conservationists, and others share stories, insights and ideas about Our Changing Planet, Wildlife & Wild Spaces, and The Human Journey. More than 50,000 comments have been added to 10,000 posts. Explore the list alongside to dive deeper into some of the most popular categories of the National Geographic Society’s conversation platform Voices.

Opinions are those of the blogger and/or the blogger’s organization, and not necessarily those of the National Geographic Society. Posters of blogs and comments are required to observe National Geographic’s community rules and other terms of service.

Voices director: David Braun (

Social Media