Humans are not particularly known for their acute sense of smell, like dogs for example. However, a recent study suggests we can tell the age of older people based on their body odour.
"Humans are actually quite good at sniffing around," says study lead Johan Lundström, a researcher at the Monell Chemical Senses Center in Philadelphia, Pennsylvania. "The problem is that our nose is a little higher up from the ground, and the human brain is wired to not pay attention to odors.