1. Willow Tree: Nature’s Pain Reliever
The common willow tree gave us aspirin, the world’s most popular painkiller. Its bark contains salicin, which people used for centuries to treat fevers and inflammation. Felix Hoffmann at Bayer modified this compound in 1897 to create acetylsalicylic acid. His work made the drug gentler on stomachs while preserving its therapeutic effects. Today, millions rely on aspirin not just for headaches but also to prevent heart attacks through its blood-thinning properties.