Welcome to First Sleep Aid, where calm storytelling meets deep curiosity.This episode takes you to the gaslit streets of Whitechapel, 1888, where fear lived in shadows and a name—Jack the Ripper—entered history. We revisit the unsolved murders, the lives of the victims, the investigation that failed, and the enduring questions that still echo more than a century later.With empathy, detail, and clarity, we explore what remains: the facts, the theories, and the silence behind the myth.

Discover the remarkable life of Marie Curie — the first person to win Nobel Prizes in two different sciences.From her humble beginnings in occupied Poland to groundbreaking discoveries in radioactivity, this episode traces her quiet perseverance, scientific brilliance, and enduring legacy.Follow her journey through personal loss, wartime service, and revolutionary impact on physics, chemistry, and medicine.Listen to the story of a woman who illuminated the invisible and changed the world forever.

On the night of June 6th, 2007, 21-year-old student Tanja Gräff vanished during a university party in Trier, Germany. She was last seen near a wooded cliff behind campus. For eight years, there was no trace. Then, in 2015, her remains were found just 100 meters from where she was last seen.This episode investigates the timeline, witness reports, and theories — from accidental fall to foul play — and the questions raised by her family about the police investigation.