Kate Marvel's dream of being a genius takes her to Cambridge to study astrophysics, and when Joe Normandin begins to question his sexuality as a teenager, he turns to neuroscience for help.

After debunking Bella Hadid’s treatment for chronic lyme disease, Fola Olusanya finds herself in a heated debate with another TikToker, and during the pandemic, infectious disease researcher and science communicator Laurel Bristow receives a flood of hate mail.

After giving birth to her second child, Julie Raskin doesn’t know how to handle his constant crying and need to nurse, and as a new immigrant and surprise cancer patient, Emmanuel Paul navigates the complexities of the US healthcare system.

Eva Chebishev gets voted “Most Organized” in first grade and struggles to fit in with her peers, and Morgan Roberts is worried about how people will see her if she enters a high school math competition.