#7. Cancer Detection!
Your dog could save your life one day. It seems that our canine friends have the ability to smell cancer in the human body. Stories abound of owners whose dogs kept sniffing or licking a mole or lump on their body so they got it checked out, discovering it was cancerous.
The anecdotal evidence was later backed up by scientific studies. Dogs are so good at this that some of them are trained to detect cancer, in as little as three hours.
