|The nervous system and the endocrine system act together in a process called neuroendocrine integration. This is essential to regulate the human physiological processes. The neuroendocrine regulation helps hypothalamus to maintain homeostasis, regulate metabolism, eating and drinking habits, energy level balance and blood pressure regulation.The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number of citations to recent articles published inÂ science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised byÂ Eugene Garfield, the founder of theÂ Institute for Scientific Information. The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years.