Toothpaste actually predates the toothbrush in dental hygiene's history. Learn the long history behind this everyday item in today's classic episode of BrainStuff, based on this article: https://health.howstuffworks.com/wellness/oral-care/products/history-toothpaste.htm
Learn more about your ad-choices at https://www.iheartpodcastnetwork.com

What Pranks Have Astronauts Pulled?
08:40

How Can Your Body Learn to Tolerate Cold?
10:58

How Did the War of 1812 Settle the American Revolution?
10:23