But before I sign off until September, here's one more set of Gross and Goofy Facts:
- Most of the time, your heart beats about eighty or ninety times a minute. People who exercise a lot have lower heart rates. The hearts of some Olympic athletes beat just thirty times a minute.
Looking for more Gross & Goofy Body facts? Check out my book Pump It Up: The Secrets of the Heart and Blood. To find out more about the whole Grosss and Goofy Body series, read this very thorough review from School Library Journal.
Have a great summer!