Linda is the former Director of the National Institute of Environmental Health Sciences and the National Toxicology Program. She was granted Scientist Emeritus Status at NIH when she retired and is also a Scholar in Residence at the Nicholas School of the Environment, Duke University. As NIEHS director, Dr. Birnbaum oversaw research grants and shared the results of cutting edge environmental health research with the public and policy makers. She also met with communities to better understand environmental health concerns and disparities. Throughout her career, Dr. Birnbaum has been particularly effective at bringing forward the mounting scientific evidence of harm of exposures to certain chemicals that are now ubiquitous in our products and environment. Her discussion of the current science has helped to shift our understanding of exposures to include the dangers of chronic low dose exposures and the long term effects of early lifetime exposures.