Ferda,

Thank you for your thoughtful summary. I have made some changes. This is the revised version.  Please notice the differences.

 Italian scientists found romance inducing chemicals in the brain last a year.  Research leader Dr. Enzo Emanuele reported from the Universty of Pavia  that levels of a chemical called Nerve Growth Factor (NGF) are the cause and that it also makes us short of breath and  fall over. When people first fall in love,  adrenalin greatly increases and so do  happy, wonderful and confident feelings. People who have fallen in love get butterflies in their stomach and sweaty palms; some young men buy red roses and candleit dinners. All volunteers in the study had recently fallen in love . When people start new relationships, they are careful in their new relation life.