Sensory Stimulation and Mental Workouts Affect Brain Fluid Dynamics.

Researchers at Boston University have found that manipulating blood flow in the brain with visual stimulation induces the flow of cerebrospinal fluid, which helps remove toxins from the brain. The study demonstrates that the flow of cerebrospinal fluid in the brain is linked to waking brain activity, and the findings could impact treatment for conditions like Alzheimer’s disease, which have been associated with declines in cerebrospinal fluid flow. The researchers discovered that exposure to a flashing pattern can increase the flow of cerebrospinal fluid, which could be a way to combat natural or unnatural declines in fluid flow that occur with age or disease.