Love is certainly a natural phenomenon but it is wrong to say that it is devoid of scientific explanations. Recent study has suggested that brain plays a vital role when any woman falls in love with any guy. A chemical called dopamine is released from brain which is responsible for the feeling of love. It is also associated with the production of increased testosterone at the time of love. Other chemicals responsible for such feeling include phenylethylamine and norepinephrine. Both are responsible for the creation of the feeling of euphoria.