Women who indulge in sex frequently have more regular menstrual cycles than those who indulge in sporadic sex. The reason, researches say, is due to the pheromones in males. It has been a long known fact that every individual has a body odor that attracts the opposite sex. An improvised version of this study is the impact of pheromones. Pheromones are invisible chemical substances emitted by individuals when they perspire. Researches believe that the maximum pheromones can be found in the underarms of an individual. Pheromones also have a direct impact on the menstrual cycles of a woman. It is common to see women living in dormitories, sharing the same room as well as mothers and daughters, or sisters, developing the same menstrual cycles. This is due to pheromones. Since, these chemical substances have a direct impact on menstrual cycles it is believed that they can be an excellent remedy for infertility. Pheromones can also be induced in individuals to enhance their sexual performances, which in due course of time increases fertility. These chemical substances can also be used for contraception, by delaying ovulation. They can act as mood enhancers, and be an excellent remedy for stress and depression. Individuals are more drawn toward others of the opposite sex whose body odor they find pleasant and attractive. Taking a cue from this, companies are manufacturing perfumes and colognes that contain pheromones. It is believed that using these products produces tremendous responses from the opposite sex, acting as a booster to one's self-confidence. Pheromone users are said to have experienced an increase in sexual activities such as hugging, kissing and intercourse. If used in the right manner, pheromones products have the potential to change one's sex life.