3 fun facts about the brain π§ π§ β‘οΈ Brain information travels up to an impressive 268 miles per hour ππ¨ β‘οΈ An adult brain weighs about 3 pounds ππΌββοΈ β‘οΈ About 75 percent of the brain is made up of water π§ This means that dehydration, even in small amounts, can have a negative effect on the brain functions!