W5: Training dogs to detect cancer

Science is now catching up to what many people have observed: dogs may have an ability to sniff out serious disease in their owners. Sandie Rinaldo travels to the UK to examine a pilot project to train dogs to detect cancer.
Subscribe to W5 to watch more videos: / @officialw5
Connect with W5:
For the latest investigations visit: www.ctvnews.ca/w5/
For a full video offering visit the CTV News Network: www.ctvnews.ca/...
W5 on Facebook: / ctvw5
W5 on Twitter: / ctvw5
---
W5 is Canada’s most-watched investigative, current affairs and documentary program. Tackling major stories and investigations W5 is in its 51st season.