Brain's 'true love' lasts only a year

November 29, 2005
love heart

Italian scientists have determined the brain chemical fired up when a person meets a "true love" doesn't last a lifetime, but rather, just 12 months.

When a person falls in love, levels of a protein called Nerve Growth Factor skyrocket, researchers from the University of Pavia found.

"We have demonstrated for the first time that circulating levels of NGF are elevated among subjects in love, suggesting an important role for this molecule in the social chemistry of human beings," said Dr. Enzo Emanuele, who led the study.

But, after studying a volunteer group of people between the ages of 18 and 31, researchers found the levels of NGF had fallen to original levels after one year, the Daily Mail reported.

Not to discourage romantics, the team wrote that they believe the same chemical also stimulates companionship, which is essential in any long-term relationship.

The report appears in the current Psychoneuroendocrinology journal.

Copyright 2005 UPI

Explore further: A fifth of a second: Falling in love is more scientific than you think

Related Stories

Recommended for you

How wind sculpted Earth's largest dust deposit

September 1, 2015

China's Loess Plateau was formed by wind alternately depositing dust or removing dust over the last 2.6 million years, according to a new report from University of Arizona geoscientists.

Brazilian wasp venom kills cancer cells by opening them up

September 1, 2015

The social wasp Polybia paulista protects itself against predators by producing venom known to contain a powerful cancer-fighting ingredient. A Biophysical Journal study published September 1 reveals exactly how the venom's ...

ATLAS and CMS experiments shed light on Higgs properties

September 1, 2015

Three years after the announcement of the discovery of a new particle, the so-called Higgs boson, the ATLAS and CMS Collaborations present for the first time combined measurements of many of its properties, at the third annual ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.