Simple being around sick people makes us smelly. In a healthy person inherent evolutionary change of smell for warning others about the risk of transfer of diseases.
Easy to find near the are not very healthy people changes the smellof our body. To this amazing conclusion, researchers from Philadelphia who was experimenting with laboratory mice. When healthy mice were brought to the sick rodents, the smell of healthy change and start to match the smell of the sick. According to the researchers, this mechanism has evolutionary advantages among mammals living in groups. If we start to smell like sick after contact with sick, thus would be preventable healthy that can give them a disease. It is known that some viruses and infections are transmitted through contact between people.
The study’s authors believe that their discovery will help to identify and diagnose disease in animals and humans. During the experiments, mice were administered injections of the molecule of Escherichia coli, and then placed in cages with healthy rodents. In just a few hours received the injections, the animals began to show signs of the disease, including fatigue and weight loss. However, they were not infectious. When the cells there were representatives of the third group of mice, specially trained to smell, they properly recognize the flavor of patients, distinguishing them from healthy with 90% accuracy.
But more surprisingly, these rodents are recognized and the smell of healthy mice come into contact with patients. In this case, the accuracy was 63%. And it showed that the smell of healthy mice varies with contact with patients, even in the case when no transmission exists, and the mice continue to maintain health. (READ MORE)