This might be a new free one too:
Breakthrough!: How the 10 Greatest Discoveries in Medicine Saved Millions and Changed Our View of the World
Why are you alive right now? Chances are, you owe your life to one of the remarkable medical discoveries in this book. Maybe it was vaccines. Or antibiotics. Or X-rays. Revolutionary medical breakthroughs like these haven’t just changed the way we treat disease, they’ve transformed how we understand ourselves and the world we live in. In Breakthrough!, Jon Queijo tells the hidden stories behind 10 of history’s most amazing medical discoveries. This isn’t dry history: These are life-and-death mysteries uncovered, tales of passionate, often-mocked individuals who stood their ground and were proven right. From germs to genetics, the ancient Hippocrates to the cutting edge, these are stories that have changed the world—and, quite likely, saved your life.