Love is the most powerful human emotion we know but not quite understand. There are many definitions to Google’s most searched out question for 2012: What is love? For some it’s basically a friendship set on fire that may or may not last very long. If you ask a philosopher he would say love is a passionate commitment that you need to nurture and cherish while a scientist would simply say that love is chemistry. In this regard researchers from the University of Pavia, Italy have correlated the intense long-term emotion of love with increase of the protein called nerve growth factor in the brain. This particular protein is fundamentally important in the survival and improvement of the neurons.
They are responsible for transmitting the sensation of temperature, pain and touch and are greatly influenced by the levels of NGF. The nerve growth factor is increased in the first stages of falling in love and the high levels are maintained throughout the first year of the relationship. In general, the NGF improves your memory by causing the intense growth of new brain cells and is connected to the delightful feelings of being loved and contented.