Could low dose radiation dampen the neurodegenerative effects of Alzheimer’s dementia? This pilot study enrolled 5 patients with early Alzheimer's dementia. They were treated with 10 Gy in 5 fractions to the whole brain over 1 week. Toxicity was mild and consisted of temporary hair loss. At 1 year, 3 patients had improved cognition and 1 patient remained stable. | Rogers, Int J Radiat Oncol Biol Phys 2023