0:00:04.653,0:00:07.421 Once last year, I got armor and a sword. 0:00:07.421,0:00:09.567 I found a dog and played with him. 0:00:09.567,0:00:11.675 I built a house and made a garden. 0:00:11.675,0:00:14.584 Night came, and monsters were everywhere. 0:00:15.213,0:00:18.866 There was an evil lord[br]that I started killing. 0:00:18.866,0:00:21.592 Just as I was about to destroy him ... 0:00:21.592,0:00:22.611 (Whistle) 0:00:22.611,0:00:24.482 "Time to line up!" 0:00:24.482,0:00:26.721 Hello, my name is Simon Link, 0:00:26.721,0:00:30.879 and I'm talking about why kids[br]should have an hour-long recess. 0:00:31.405,0:00:34.409 Did you know that genes change[br]when they get playtime? 0:00:34.409,0:00:39.489 Out of 1,200 genes[br]that scientists have studied, 0:00:39.489,0:00:43.761 one-third of them have changed[br]when they had a half-hour playtime. 0:00:44.915,0:00:46.410 Since the 1800s, 0:00:46.410,0:00:50.972 research shows that you learn[br]better and faster when having playtime. 0:00:52.086,0:00:58.368 Work that has breaks is more effective[br]than work with looooong stretches. 0:00:59.721,0:01:03.743 Some colleagues visited[br]a school that had no recess. 0:01:04.264,0:01:06.866 They asked them[br]to have recess twice a week 0:01:06.866,0:01:10.407 so that they could watch them[br]and see what they were like. 0:01:10.412,0:01:14.782 They were more focused and less fidgety[br]on days when they had recess. 0:01:16.057,0:01:18.399 Stress impacts on learning and health. 0:01:18.399,0:01:22.428 For many children, especially[br]those considered hyperactive, 0:01:22.428,0:01:28.116 recess is an opportunity to expend energy[br]in a healthy, suitable manner. 0:01:28.116,0:01:30.494 Recess develops social skills. 0:01:30.494,0:01:34.916 Recess may be the only time of the day[br]when children have an opportunity 0:01:34.916,0:01:39.159 to experience socialization[br]and real communication. 0:01:39.634,0:01:43.399 The outside light triggers[br]the synthesis of vitamin D, 0:01:43.399,0:01:48.933 which many studies have shown[br]increases academic learning. 0:01:50.167,0:01:55.023 The outdoors is the best place[br]for children to burn calories, 0:01:55.023,0:02:00.237 practice emerging physical skills,[br]and experience the pure joy of movement. 0:02:01.492,0:02:06.572 According to Rae Pica, who is[br]a children's physical activity specialist, 0:02:06.572,0:02:08.314 recess may be the ... 0:02:08.314,0:02:12.218 research even shows that you learn ... 0:02:12.914,0:02:15.071 research even shows ... 0:02:16.526,0:02:17.530 that ... 0:02:17.735,0:02:20.456 when having physical activity at school, 0:02:20.460,0:02:23.616 you usually have[br]more physical activity at home, 0:02:23.624,0:02:27.720 and children who don't have[br]the opportunity 0:02:27.720,0:02:30.491 to be physically active[br]during the school day 0:02:30.494,0:02:34.294 don't usually compensate[br]during the after-school hours. 0:02:35.834,0:02:38.356 Running around helps the brain. 0:02:39.104,0:02:41.451 Thanks to advances in brain research, 0:02:41.451,0:02:45.912 we know that most of the brain[br]is activated during physical activity 0:02:45.913,0:02:48.730 much more so than being a couch potato. 0:02:52.413,0:02:53.817 Now, stand up, 0:02:53.817,0:02:56.808 and do ten jumping jacks when I say go. 0:03:04.433,0:03:05.443 Go! 0:03:05.443,0:03:09.453 One, two, three, four, five, 0:03:09.603,0:03:13.573 six, seven, eight, nine, ten. 0:03:13.573,0:03:15.382 Now, sit down. 0:03:20.985,0:03:25.232 I imagine a world where every child[br]gets lots of playtime. 0:03:25.232,0:03:26.917 I hope that if you have children, 0:03:26.917,0:03:30.175 you will make sure that those children[br]get lots of playtime. 0:03:30.175,0:03:31.177 Thank you. 0:03:31.607,0:03:32.905 (Applause)