Joe Walsh is the first Alzheimer's patient to be treated with an experimental nasal spray designed to reduce inflammation in the brain. Joe Walsh, 79, is waiting to inhale. He's perched on a tan ...

His wife, Karen Walsh, hovers over him, ready to depress the plunger on a nasal spray applicator. "One, two, three," a nurse counts. The plunger plunges, Walsh sniffs, and it's done. The nasal ...

His wife, Karen Walsh, hovers over him, ready to depress the plunger on a nasal spray applicator. "One, two, three," a nurse counts. The plunger plunges, Walsh sniffs, and it's done. The nasal spray ...