WEBVTT 00:00:00.536 --> 00:00:04.923 Dogs watch us all the time, in a way that no other animal does. 00:00:06.007 --> 00:00:08.625 [Maureen]: He senses whenever we are going to go out, 00:00:08.751 --> 00:00:11.048 and he knows before we even make a move. 00:00:12.872 --> 00:00:15.286 [narrator]: They read our body language 00:00:15.296 --> 00:00:18.036 and that's how they know we're going to take them for a walk 00:00:18.058 --> 00:00:21.086 before we think we've made the decision ourselves. 00:00:23.562 --> 00:00:27.929 It's this constant observation that can sometimes seem to give them a sixth sense. 00:00:32.430 --> 00:00:38.103 Max is a red collie cross, normally full of energy and enthusiasm. 00:00:38.307 --> 00:00:43.803 But in 2008, his owner, Maureen Burns, noticed that something was wrong. 00:00:43.803 --> 00:00:49.303 [Maureen]: I thought at the time Max was fading. He was nine and a half. 00:00:49.303 --> 00:00:55.008 and I was preparing myself for losing him, because of... he just wasn't happy. 00:00:55.008 --> 00:00:59.203 Wouldn't come by me, wouldn't sit by me, wouldn't sit on my lap. 00:00:59.203 --> 00:01:06.004 And the odd signs, he would come up, and touch my breast with his nose 00:01:06.004 --> 00:01:12.708 and back off, so desperately unhappy, with such a sad look in his eyes. 00:01:13.400 --> 00:01:16.104 [narrator]: Maureen had a small lump in her breast, 00:01:16.104 --> 00:01:21.044 but her latest mammogram was clear, so she presumed all was OK. 00:01:21.044 --> 00:01:26.791 - Initially I thought, it's just another lumpy breast , as people get. 00:01:28.311 --> 00:01:36.811 But then, I sort of connected it with the dog. With his odd behaviour. 00:01:37.297 --> 00:01:44.093 And one day, I was looking in the mirror, in the bedroom here, and I looked across in the mirror at Max's eyes. 00:01:44.093 --> 00:01:48.920 He was on the bed, as he is now, and I knew it was cancer. 00:01:50.706 --> 00:01:57.011 [narrator]: Maureen went to her local hospital, but both a scan and a mammogram came back negative. 00:01:59.096 --> 00:02:02.845 It took a surgical biopsy to finally detect the cancer. 00:02:05.095 --> 00:02:10.478 Maureen had it removed, and the change in Max's behaviour was instant. 00:02:10.478 --> 00:02:17.756 [Maureen]: The day I was picked up from the hospital, he was his old hyper self again. 00:02:18.214 --> 00:02:27.646 Put his nose across my breast, to check where the operation had been, and he was wagging his tail and his eyes were happy. 00:02:27.646 --> 00:02:32.444 It was unbelievable, the change in him. Instant. 00:02:32.879 --> 00:02:37.712 I love Max so much, and I owe him so much. 00:02:37.712 --> 00:02:42.829 Even before I go for a checkup now, I get him to check me out. 00:02:42.829 --> 00:02:49.921 And if he's happy and wagging his tail, I'm happy, and I know I'm OK. 00:02:52.777 --> 00:02:59.582 [narrator]: We now know that dogs like Max are smelling the tiny volitile chemlcals given off by cancerous tumors. 00:02:59.582 --> 00:03:06.450 Most dogs can do this, they just don't know that we're interested. 00:03:07.842 --> 00:03:14.724 But with a little training, dogs can accurately pick out a cancerous patient from a selection of urine samples. 00:03:15.460 --> 00:03:18.446 [sound of clicking] [woman]: Good girl. 00:03:19.559 --> 00:03:27.418 [narrator]: They can even be taught to let diabetics like Steven know that his blood sugar levels are low, long before he can feel it, 00:03:27.418 --> 00:03:30.742 and definitely before he passes out. 00:03:32.167 --> 00:03:36.742 Dogs like Steven's are now transforming lives all over the country. 00:03:36.742 --> 00:03:44.451 They're being trained to detect the early warning signals for severe allergic reactions, epileptic fits, and narcolepsy. 00:03:45.313 --> 00:03:50.654 [lively music]