In the cold Season of the year coughs and colds are widely used. Usually a harmless cold is just behind it. However, fever is augmented by the symptoms, could it be possibly to influenza viruses. “World wonder” explains what happened in the case of a flu in the body. Also: freedom on the high seas – sailing. Wonder weapon-humour – why is Laughter healthy? And: did you know? “World wonder” will be presented amazing results in various Lifestyle studies.