We should strive for at least 60 minutes or more of physical exercise per day and many hours of a range of light physical activities, such as hide-and-seek or other physical games, according to the recommended movement guidelines for ages 5-17 in Australia. At least three days each week must be dedicated to exercises that strengthen the bones and muscles. Limiting screen time to a maximum of two hours a day is suggested as well in order to move around more and sit less.