It is defined as a disorder in which there is a problem in the communication in which there is a problem in the written as well as verbal expression. It is a main language problem in which the individual is not able to speak properly. It is below the level of mental age the comprehension [...]

It is defined as a disorder in which there is an inability of the both males as well as females to get excited physically and cannot complete the sexual inter course. The man cannot achieve the erection. It is also known as erectile dysfunction. It is mostly short lived but can continue for the rest [...]