Humans may be able to smell sickness, or at least detect a distinct odor in the sweat of people with highly active immune systems.
On a cold, crisp day, there are fewer smells to be smelled and our noses become less sensitive to smells.
Regular exercise may lower the risk that a person's sense of smell will fade, which tends to happen as people age.
When it comes to manly scents, there are a lot of ways to go. Bruce Willis, Justin Timberlake and David Beckham all have their own colognes. But why smell like any celebrity, now matter how successful, when you can smell like a superhero? That's right, there's now a line of colognes based on The Av...