The secret of health

U.S. scientists have studied why some people become ill less often than others. They gained new insights about why some seem to be immune.
There are contemporaries who seem never for a cold, let alone get a bad cold or flu. American researchers wanted to know exactly why some people just seem to be immune against common pathogens. Some preventive measures so far have confirmed the already known scientists. However, the psyche and social behavior seem to have great influence on the physical condition.