True love between men and women to keep up to 30 months

Cornell University, Ms. Lucy Tenney Tigers took three years, the United States 5000 pairs age 25 to 45 years old husband and wife conducting a sampling survey, these data into the computer, and then after the relevant medical psychology test analysis concluded that:
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True love between men and women, its time can only be maintained for 18 months to 30 months, after this time, feel each other usually will not have heart rate, sweaty palms phenomenon; men, women hug the intensity of the original were only about 35% and 25%; kissing the heat were only about 30% of the original and 35%. At the same time, men and women watching each other's time than the original by about 15% and 20%, especially women, even if the man you love is on tiptoes with the situation said, the Hing Wah Street West had less than the height of about 1 ~ 2 cm.



Tenney Tigers Ms. Lu pointed out that the love between men and women from the three brain chemicals dopamine, phenylethylamine and oxytocin stimulate them, and when men and women fall in love first, this projection 3 chemicals out the so-called excitement, unable to stop. But as time passed, people will gradually within the body of chemicals that produce 3 new prime an anti-antibody, two years later, this three kinds of chemical substances is gone, the novelty will be between men and women gradually disappear, replaced along with a blend of emotions.