A recent study shows that people that are sick might be giving subtle cues as to their state. The research observed that people could detect when another individual is sick by just looking at their face.
A Swedish psychologist led the study. This mentioned that these particular hints could be spotted by looking at the eyes, mouth, and skin.
How to Correctly Spot Sick People
Next time a person tells you that you look sick, you might want to go and get checked. In comparison to people, animals rely on their sense of smell to detect certain illnesses.
In previous studies, the research team focused on how animals use their sense of smell in detecting illnesses.
In some cases, even people rely on the olfactory senses of particular species to tell them when a person is sick. For instance, a hospital in Canada used the help of a dog to detect bacterial spores which infect patients.
This comes in the wake of the idea that sick people give off particular odors. Now, this latest study claims that clues to our health can also be spotted by looking at the face.
To conduct this study, the team of researchers from Sweden and Germany injected 16 people (half of them women and the other men) with a molecule which is found in bacterial membranes.
People, just like animals, had a strong reaction to the substance. Scientists photographed the participants before and 2 hours and 10 minutes after they received the injection. The team also took photos of people after injecting them with a placebo solution.
The images of a person as they were sick or healthy were never placed one after the other in any of the stacks received and ready for inspection. In total, the participants identified some 1,215 images as showing sick people. They were correct in 800 of the cases.
Another group of students was asked to rate the features that seem to change in sick people. A change in the skin color was noted to be the most significant difference, with subtle cues around the eyes and mouth coming in after.
Image Source: MaxPixel