Frequent travel exposes the hair to frequent changes in water. As far as the water is concerned, it is not the question of good water or bad water or hard water or soft water, but it is the change in water that causes the hair loss. The fact that the new water is different in type and make from the old water is sufficient to trigger hair loss. This type of hair loss is known as Telogen Effluvium. The name is a combination of 2 words: Telogen which refers to the falling phase of the hair and Effluvium which means to evaporate. Thus as the name suggests the hair fall in this condition is so rapid that it simply seems to evaporate from the head which is also referred in American Academy of Dermatology Association.