Javascript is not enabled.

Javascript must be enabled to use this site. Please enable Javascript in your browser and try again.

Skip to content
Content starts here
CLOSE ×
Search

UHCRA

Prudential

One Pass

MS15

Leaving AARP.org Website

You are now leaving AARP.org and going to a website that is not operated by AARP. A different privacy policy and terms of service will apply.

Brain Teaser

Challenge Your Cognitive Know-How!


A night of restful sleep not only feels great, it’s great for you. What system does your brain use during deep (slow-wave) sleep to flush out toxins?

Never heard of the glymphatic system? It’s a network that uses cerebrospinal fluid to flush out toxins and waste products from the brain while you snooze. This process is important for maintaining brain health, so make sure to get your Zs!

0 Correct
0 Incorrect
Oops...something went wrong. Please log out and log back in to continue.