Whiteout (weather) Whiteout (weather) Whiteout is a weather condition in which visibility and contrast are severely reduced by snow or sand. The horizon disappears from view while the sky and landscape appear featureless, leaving no points of visual reference by which to navigate. Whiteout has been defined as: "A condition of diffuse light when no shadows are cast, due to a continuous white cloud layer appearing to merge with the white snow surface. No surface irregularities of the snow are visible, but a dark object may be clearly seen. There is no visible horizon." A whiteout may be due simply to extremely
Fear of medical procedures higher than fear in adults (ages 26–79) showing that over the years, with maturity the fear of dental work decreases. Still many are making appointments and breaking them or not making them at all, leading to a deterioration of their dental condition. Two of the most common fears of medical procedures are the fear of doctors and the fear of needles. These simple fears, when not overcome by patients, either by themselves or with medical help, can cause great problems in the future for their health. People of all ages deal with fear of doctors (iatrophobia). Children often express fear