A recent study seems to find a way to stop the forming of new toxic plaques in the brain. The researchers used hyperbaric oxygen therapy first on a mouse model of Alzheimer’s disease and then on people with Alzheimer’s to see whether the therapy can halt or slow the disease progression.

Many older people have amyloid plaques in their brains but never progress to developing Alzheimer’s disease. It seems that amyloid accumulation on its own is not enough to cause dementia. So what is a trigger that starts the disease progression?