Researchers discover a new sensory ability in humans

"The human sense of smell is far better at guiding us through our everyday lives than we give it credit for," said cognitive neuroscientist Johan Lundström. He was referring to what he and a research team just discovered, which is that humans can actually tell how much fat is in their food just by smelling it. » 1/22/14 6:30pm 1/22/14 6:30pm

These diseases can be diagnosed by smell

It's not hard to tell when you've walked into a room, or a house, in which a person is sick with with a flu or a bad cold. There's an immediate smell of stale sweat, cough medicine, and human misery. But can it be done with other diseases? According to doctors, there are some diseases, physical and mental, that can be… » 11/12/12 7:20am 11/12/12 7:20am

10 Limits to Human Perception ... and How They Shape Your World

Every human has limits. You can only run so fast, jump so high, and go for so long without water. But what about restrictions upon our five senses, those tools that we use to perceive and understand our surroundings? Here are ten limitations on human perception that have a direct impact on how we understand the world. » 7/17/12 10:26am 7/17/12 10:26am

The truth about why things smell bad: Vibrating molecules

For over a century, our sense of smell has been explained with the "lock and key" hypothesis, which holds that each odor molecule has a particular shape that allows it to fit into particular smell receptors in the nose. But now a controversial study involving fruit flies suggests that hypothesis might miss the truth… » 2/15/11 5:00pm 2/15/11 5:00pm