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Experts discern human sense of smell is sensitive as Dogs

As you read this, take a whiff. What smells do you detect? How do these smells affect how you feel?

It’s rare that people consciously take in the smells around them, but a new review argues that the human sense of smell is more powerful than it’s usually given credit for, and that it plays a bigger role in human health and behavior than many medical experts realize.

“The fact is the sense of smell is just as good in humans as in other mammals, like rodents and dogs,” John McGann, a neuroscientist at Rutgers University-New Brunswick in New Jersey and the author of the new review, said.

People often think of dogs and rats as the superior sniffers in the animal kingdom, but humans also have an extremely keen sense  of smell.

It’s true that humans have relatively smaller olfactory organs and fewer odor-detecting genes compared with other animals. However, the power of the human brain more than makes up for this.

“The truth is that 400 different receptors still offer a tremendous range. There are very few odors that humans can’t smell despite having practically fewer receptors than rats, mice and dogs,” McGann told Live Science. Part of the reason humans can detect so many odors is thanks to their “much more complicated and powerful brain that’s interpreting that information.”