The thyroid gland, or simply the thyroid, in vertebrate anatomy, is one of the largest endocrine glands and consists of two connected lobes. The thyroid gland is found in the neck, below the thyroid cartilage. The thyroid gland controls how quickly the body uses energy, makes proteins, and controls how sensitive the body is to other hormones Thyroid therapy depends on the individuals with the thyroid disorders. Thyroid therapy takes place with the thyroid hormone replacement therapy. Generally, T3 is Triiodothyronine which is very act in the growth and development than T4 thyroxine. In this thyroid disorder causes due to the lack of T3 hormone so generally doctor prescribes pills with the triiodothyronine hormone in the kind of diagnosis the supplement of T3 can be done. Synthetic triiodothyronine can be given occasionally in case thyroid cancer radioiodine ablation can be done. The top journals are peer reviewed scholarly journals. These provide high quality, meticulously reviewed and rapid publication, to cater the insistent need of scientific community. These journals are indexed with all their citations noted. The top open access journals are indexed in MEDLINE, PUBMED, SCOPUS, COPERNICUS, CAS, EBSCO and ISI. 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 in 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 by Eugene Garfield, the founder of the 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.