I Weather has a powerful effect on the physical world. It also affects people’s personalities and we know the effects through the biometeorologists. These are the scientists who are weather researchers. They study human health and emotions in response to atmospheric conditions. The word atmosphere means “the air around the earth.” “Atmospheric condition at a time or place” is a definition of the word weather. Some examples of these conditions are sun, wind, rain, snow, humidity (the amount of moisture in the air), and air pressure (the force of air). The weather conditions of the atmosphere greatly influence people’s health, thinking, and feelings.