Sniffs and coughs are NOT the only signs of sickness to look for: How eyes, lips and skin tell you who is ill!
When someone says 'you don't look so good,' you might want to listen and head to the doctor, according to new research. Detecting illness is essential to survival from an evolutionary perspective, but it was previously unclear if and how humans could identify signs of it just by looking at one another. With a particularly bad flu season upon us, symptoms like a runny nose or a persistent cough seem like good potential indicators of who to avoid if we want to dodge the bug. But researchers in Sweden , the US and Germany collectively found that we are able to tell the difference between a sick person and a healthy one just by looking at their faces. The annual flu epidemic has already reached widespread status and claimed the lives of a number of people, including at least 12 children. Reports have been swirling around that the flu shot may not be as effective against this year's strain, leaving many looking for alternative preventative methods.