Smell knows age

Research by American scientists shows that people can guess each other's age by smelling body odor.

According to Mornell Sensory Research Center, no need to look at the face, just smell the body odor, people can identify others around you in middle age, young or old. In particular, the elderly are most easily recognized, because they have a more pleasant smell than the middle and young people.

Elderly people smell better.

Scientists have formed three groups. Group one from 12 to 16 years, group two from 20 to 55 and group three from 75 to 95 years. They all wore T-shirts, lined absorbent cloth under the arms when sleeping for 5 consecutive nights. Later, the researcher cut the lining and placed it in a glass jar.

Another group consists of 41 people from 20 to 30 years old to sniff the upper pads at a time. The results showed that the middle and young people's pads had a more unpleasant smell of the elderly.

The team said that the change in body odor is due to the chemicals that humans turn out in combination with bacteria on the skin. At different ages, the number of bacteria is also different.

Telegraph quoted Dr. Johan Lundström, lead researcher, as similar to other animals, that humans can distinguish age or disease through body odor to choose the right mate.

"This study contrasts with the long-held belief that older people smell more unpleasant," said Dr. Johan Lundström.