Candy stores in the 19th century sold sweets as deadly as they were delicious.

Blood is powerful, but it can also be dangerous.

Sneezing, itchy eyes, runny nose? On this episode we look at allergies.

Chemist Max Bredig’s race to save family and friends from catastrophe.

A lucky streak sends a meteorologist on the flight of a lifetime.

What a manuscript can tell us about an iconic scientist and the history we’ve built around him.