Use double quotes to find documents that include the exact phrase: "aerodynamic AND testing"
Young girl sleeping with a plush bear.

According to the Canadian 24-Hour Movement Guidelines, children (ages 5-13) require 9 to 11 hours of uninterrupted sleep per night and youth (ages 14-17) require 8 to 10 hours per night. Check out this infographic for tips to encourage a good night’s sleep in your family such as encouraging regular wake-up times on the weekend and keeping screens out of the bedroom.