DOGS THAT SMELL CANCER;

Dogs have a well developed olfactory receptors,making it possible for the canine to pick up various scents that humans cant detect.The canine has about 220 million olfactory receptors while humans have about 5 -10 million olfactory receptors.This highly developed olfactory functions is the reason behind the sniff-detection ability of dogs.The odor processing part of the necocortex of the dog brain is large about 4 times more than humans,this has been employed in dog training. Dogs are trained to sniff out drugs,bombs, changes in glucose levels in diabetic patient and recently they sniff samples or organs for cancer. The dog is really intelligent,protective but more importantly the genetic make up of their noses make the sniffing ability a key in its training and subsequent usefulness.The dogs are trained using various samples from cancer patients,and with 5-6 weeks of sniffing various samples the dogs are 98% accurate.This early detection improves prognosis of the cancer patient as treat is commenced immediately. Read more how this is done at http://www.dogsdetectcancer.org/dogs-detect-cancer-blog/dogs-smell-cancer.