Life-saving dog can tell you're getting bowel cancer

 "Man's best friend just became even better, with tests showing that dogs can sniff out the early stages of bowel cancer.

A labrador retriever detected traces of cancer with more than 90 per cent accuracy from samples provided by volunteers.

Because a dog’s sense of smell is 1,000 times more sensitive than a human’s, it can apparently pick up chemical compounds specific to certain cancers."
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