There is a distinct change in the libido levels between a man and a woman. The reason behind it may be physical or psychological. The women anatomically are in-charge of performing different activities as compared to the males. In the biological cycle of mankind, the woman plays a very different role as compared to a man. This is one of the main reasons why the levels of libido in women are much lower as compared to the man. Sexual desires are something which can be characteristically seen to be higher in males.