Chemicals like BPA and phthalates are a popular choice in making water bottles and food packaging because they do a great job of making plastic flexible, but they also look a lot like hormones. Our bodies have a hard time telling the difference. Elli Sellinger, BS in neuroscience, will dive into how hormones, like estrogen and testosterone, shape the developing brain and how chemicals like BPA and phthalates can mess with this process.