rhythmic waves tagged posts

Researchers have found that brain cell activity during sleep is responsible for propelling fluid into, through and out of the brain, cleaning it of debris. Findings could lead to new approaches for Alzheimer’s, other neurological conditions.

There lies a paradox in sleep. Its apparent tranquility juxtaposes with the brain’s bustling activity. The night is still, but the brain is far from dormant. During sleep, brain cells produce bursts of electrical pulses that cumulate into rhythmic waves — a sign of heightened brain cell function.

But why is the brain active when we a...