Most treatments being pursued today to protect against Alzheimer’s disease focus on amyloid plaques and tau tangles that accumulate in the brain, but new research points to a novel — and noble — approach: using Xenon gas. The study found that Xenon gas inhalation suppressed neuroinflammation, reduced brain atrophy, and increased protective neuronal states in mouse models of Alzheimer’s disease. A phase 1 clinical trial of the treatment in healthy volunteers will begin in early 2025.